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Finding the Fourth Proportional to 42,780.87, 59,013.90 and 24,873.90

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Solution

The fourth proportional to 42,780.87, 59,013.90 and 24,873.90 is: 34,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,780.87 : 59,013.90 = 24,873.90 : x
  2. Step 2: Convert to fraction form
    42,780.87/59,013.90 = 24,873.90/x
  3. Step 3: Cross multiply
    42,780.87x = 59,013.90 × 24,873.90
  4. Step 4: Simplify right side
    42,780.87x = 1,467,905,709.43
  5. Step 5: Solve for x
    x = 1,467,905,709.43/42,780.87
  6. Step 6: Final answer
    x = 34,312.20

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1.5x scale

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.