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Finding the Fourth Proportional to 52,213.71, 72,052.99 and 28,339.88

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Solution

The fourth proportional to 52,213.71, 72,052.99 and 28,339.88 is: 39,107.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,213.71 : 72,052.99 = 28,339.88 : x
  2. Step 2: Convert to fraction form
    52,213.71/72,052.99 = 28,339.88/x
  3. Step 3: Cross multiply
    52,213.71x = 72,052.99 × 28,339.88
  4. Step 4: Simplify right side
    52,213.71x = 2,041,972,659.13
  5. Step 5: Solve for x
    x = 2,041,972,659.13/52,213.71
  6. Step 6: Final answer
    x = 39,107.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.