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Finding the Fourth Proportional to 53,343.99, 80,020.14 and 15,901.20

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Solution

The fourth proportional to 53,343.99, 80,020.14 and 15,901.20 is: 23,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,343.99 : 80,020.14 = 15,901.20 : x
  2. Step 2: Convert to fraction form
    53,343.99/80,020.14 = 15,901.20/x
  3. Step 3: Cross multiply
    53,343.99x = 80,020.14 × 15,901.20
  4. Step 4: Simplify right side
    53,343.99x = 1,272,416,250.17
  5. Step 5: Solve for x
    x = 1,272,416,250.17/53,343.99
  6. Step 6: Final answer
    x = 23,853.04

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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.