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Finding the Fourth Proportional to 53,344.99, 80,021.64 and 15,902.20

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Solution

The fourth proportional to 53,344.99, 80,021.64 and 15,902.20 is: 23,854.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,344.99 : 80,021.64 = 15,902.20 : x
  2. Step 2: Convert to fraction form
    53,344.99/80,021.64 = 15,902.20/x
  3. Step 3: Cross multiply
    53,344.99x = 80,021.64 × 15,902.20
  4. Step 4: Simplify right side
    53,344.99x = 1,272,520,123.61
  5. Step 5: Solve for x
    x = 1,272,520,123.61/53,344.99
  6. Step 6: Final answer
    x = 23,854.54

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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.