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Finding the Fourth Proportional to 58,689.65, 87,972.99 and 27,120.42

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Solution

The fourth proportional to 58,689.65, 87,972.99 and 27,120.42 is: 40,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689.65 : 87,972.99 = 27,120.42 : x
  2. Step 2: Convert to fraction form
    58,689.65/87,972.99 = 27,120.42/x
  3. Step 3: Cross multiply
    58,689.65x = 87,972.99 × 27,120.42
  4. Step 4: Simplify right side
    58,689.65x = 2,385,864,437.46
  5. Step 5: Solve for x
    x = 2,385,864,437.46/58,689.65
  6. Step 6: Final answer
    x = 40,652.22

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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.