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Finding the Fourth Proportional to 53,358.71, 80,049.50 and 15,921.72

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Solution

The fourth proportional to 53,358.71, 80,049.50 and 15,921.72 is: 23,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,358.71 : 80,049.50 = 15,921.72 : x
  2. Step 2: Convert to fraction form
    53,358.71/80,049.50 = 15,921.72/x
  3. Step 3: Cross multiply
    53,358.71x = 80,049.50 × 15,921.72
  4. Step 4: Simplify right side
    53,358.71x = 1,274,525,645.53
  5. Step 5: Solve for x
    x = 1,274,525,645.53/53,358.71
  6. Step 6: Final answer
    x = 23,885.99

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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.