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Finding the Fourth Proportional to 10,487.94, 15,734.24 and 3,470.16

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Solution

The fourth proportional to 10,487.94, 15,734.24 and 3,470.16 is: 5,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.94 : 15,734.24 = 3,470.16 : x
  2. Step 2: Convert to fraction form
    10,487.94/15,734.24 = 3,470.16/x
  3. Step 3: Cross multiply
    10,487.94x = 15,734.24 × 3,470.16
  4. Step 4: Simplify right side
    10,487.94x = 54,600,330.28
  5. Step 5: Solve for x
    x = 54,600,330.28/10,487.94
  6. Step 6: Final answer
    x = 5,206.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.