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Finding the Fourth Proportional to 62,847.59, 86,730 and 34,555.10

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Solution

The fourth proportional to 62,847.59, 86,730 and 34,555.10 is: 47,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,847.59 : 86,730 = 34,555.10 : x
  2. Step 2: Convert to fraction form
    62,847.59/86,730 = 34,555.10/x
  3. Step 3: Cross multiply
    62,847.59x = 86,730 × 34,555.10
  4. Step 4: Simplify right side
    62,847.59x = 2,996,963,823
  5. Step 5: Solve for x
    x = 2,996,963,823/62,847.59
  6. Step 6: Final answer
    x = 47,686.22

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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.