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Finding the Fourth Proportional to 7,713.99, 10,645.28 and 4,177.23

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Solution

The fourth proportional to 7,713.99, 10,645.28 and 4,177.23 is: 5,764.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.99 : 10,645.28 = 4,177.23 : x
  2. Step 2: Convert to fraction form
    7,713.99/10,645.28 = 4,177.23/x
  3. Step 3: Cross multiply
    7,713.99x = 10,645.28 × 4,177.23
  4. Step 4: Simplify right side
    7,713.99x = 44,467,740.19
  5. Step 5: Solve for x
    x = 44,467,740.19/7,713.99
  6. Step 6: Final answer
    x = 5,764.56

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Half scale
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Double scale
Find fourth proportional to 7,714.99, 10,646.66 and 4,178.23
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.