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Finding the Fourth Proportional to 59,874.90, 89,812.34 and 20,432.01

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Solution

The fourth proportional to 59,874.90, 89,812.34 and 20,432.01 is: 30,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,874.90 : 89,812.34 = 20,432.01 : x
  2. Step 2: Convert to fraction form
    59,874.90/89,812.34 = 20,432.01/x
  3. Step 3: Cross multiply
    59,874.90x = 89,812.34 × 20,432.01
  4. Step 4: Simplify right side
    59,874.90x = 1,835,046,526.84
  5. Step 5: Solve for x
    x = 1,835,046,526.84/59,874.90
  6. Step 6: Final answer
    x = 30,648.01

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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.