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Finding the Fourth Proportional to 6,698.76, 9,244.85 and 3,715.56

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Solution

The fourth proportional to 6,698.76, 9,244.85 and 3,715.56 is: 5,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.76 : 9,244.85 = 3,715.56 : x
  2. Step 2: Convert to fraction form
    6,698.76/9,244.85 = 3,715.56/x
  3. Step 3: Cross multiply
    6,698.76x = 9,244.85 × 3,715.56
  4. Step 4: Simplify right side
    6,698.76x = 34,349,768.51
  5. Step 5: Solve for x
    x = 34,349,768.51/6,698.76
  6. Step 6: Final answer
    x = 5,127.78

Related Problems

Find fourth proportional to 3,349.38, 4,622.42 and 1,857.78
Half scale
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Double scale
Find fourth proportional to 6,699.76, 9,246.23 and 3,716.56
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.