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Finding the Fourth Proportional to 57,981.80, 86,980.80 and 24,701.60

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Solution

The fourth proportional to 57,981.80, 86,980.80 and 24,701.60 is: 37,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.80 : 86,980.80 = 24,701.60 : x
  2. Step 2: Convert to fraction form
    57,981.80/86,980.80 = 24,701.60/x
  3. Step 3: Cross multiply
    57,981.80x = 86,980.80 × 24,701.60
  4. Step 4: Simplify right side
    57,981.80x = 2,148,564,929.28
  5. Step 5: Solve for x
    x = 2,148,564,929.28/57,981.80
  6. Step 6: Final answer
    x = 37,055.85

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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.