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Finding the Fourth Proportional to 57,980.12, 86,910.76 and 24,678.76

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Solution

The fourth proportional to 57,980.12, 86,910.76 and 24,678.76 is: 36,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980.12 : 86,910.76 = 24,678.76 : x
  2. Step 2: Convert to fraction form
    57,980.12/86,910.76 = 24,678.76/x
  3. Step 3: Cross multiply
    57,980.12x = 86,910.76 × 24,678.76
  4. Step 4: Simplify right side
    57,980.12x = 2,144,849,787.46
  5. Step 5: Solve for x
    x = 2,144,849,787.46/57,980.12
  6. Step 6: Final answer
    x = 36,992.85

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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.