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Finding the Fourth Proportional to 60,192.50, 90,289.20 and 15,819.18

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Solution

The fourth proportional to 60,192.50, 90,289.20 and 15,819.18 is: 23,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,192.50 : 90,289.20 = 15,819.18 : x
  2. Step 2: Convert to fraction form
    60,192.50/90,289.20 = 15,819.18/x
  3. Step 3: Cross multiply
    60,192.50x = 90,289.20 × 15,819.18
  4. Step 4: Simplify right side
    60,192.50x = 1,428,301,106.86
  5. Step 5: Solve for x
    x = 1,428,301,106.86/60,192.50
  6. Step 6: Final answer
    x = 23,728.89

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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.