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Finding the Fourth Proportional to 57,688.60, 86,532.90 and 46,024.60

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Solution

The fourth proportional to 57,688.60, 86,532.90 and 46,024.60 is: 69,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,688.60 : 86,532.90 = 46,024.60 : x
  2. Step 2: Convert to fraction form
    57,688.60/86,532.90 = 46,024.60/x
  3. Step 3: Cross multiply
    57,688.60x = 86,532.90 × 46,024.60
  4. Step 4: Simplify right side
    57,688.60x = 3,982,642,109.34
  5. Step 5: Solve for x
    x = 3,982,642,109.34/57,688.60
  6. Step 6: Final answer
    x = 69,036.90

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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.