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Finding the Fourth Proportional to 7,674.77, 10,591.25 and 4,317.72

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Solution

The fourth proportional to 7,674.77, 10,591.25 and 4,317.72 is: 5,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.77 : 10,591.25 = 4,317.72 : x
  2. Step 2: Convert to fraction form
    7,674.77/10,591.25 = 4,317.72/x
  3. Step 3: Cross multiply
    7,674.77x = 10,591.25 × 4,317.72
  4. Step 4: Simplify right side
    7,674.77x = 45,730,030.36
  5. Step 5: Solve for x
    x = 45,730,030.36/7,674.77
  6. Step 6: Final answer
    x = 5,958.49

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Half scale
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Double scale
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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.