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Finding the Fourth Proportional to 59,437.90, 89,160.90 and 18,908.20

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Solution

The fourth proportional to 59,437.90, 89,160.90 and 18,908.20 is: 28,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,437.90 : 89,160.90 = 18,908.20 : x
  2. Step 2: Convert to fraction form
    59,437.90/89,160.90 = 18,908.20/x
  3. Step 3: Cross multiply
    59,437.90x = 89,160.90 × 18,908.20
  4. Step 4: Simplify right side
    59,437.90x = 1,685,872,129.38
  5. Step 5: Solve for x
    x = 1,685,872,129.38/59,437.90
  6. Step 6: Final answer
    x = 28,363.59

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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.