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Finding the Fourth Proportional to 72,810.71, 109,220.75 and 22,892.74

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Solution

The fourth proportional to 72,810.71, 109,220.75 and 22,892.74 is: 34,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,810.71 : 109,220.75 = 22,892.74 : x
  2. Step 2: Convert to fraction form
    72,810.71/109,220.75 = 22,892.74/x
  3. Step 3: Cross multiply
    72,810.71x = 109,220.75 × 22,892.74
  4. Step 4: Simplify right side
    72,810.71x = 2,500,361,930.69
  5. Step 5: Solve for x
    x = 2,500,361,930.69/72,810.71
  6. Step 6: Final answer
    x = 34,340.58

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1.5x scale

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.