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Finding the Fourth Proportional to 39,293.60, 58,940.60 and 9,712.04

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Solution

The fourth proportional to 39,293.60, 58,940.60 and 9,712.04 is: 14,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.60 : 58,940.60 = 9,712.04 : x
  2. Step 2: Convert to fraction form
    39,293.60/58,940.60 = 9,712.04/x
  3. Step 3: Cross multiply
    39,293.60x = 58,940.60 × 9,712.04
  4. Step 4: Simplify right side
    39,293.60x = 572,433,464.82
  5. Step 5: Solve for x
    x = 572,433,464.82/39,293.60
  6. Step 6: Final answer
    x = 14,568.11

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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.