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Finding the Fourth Proportional to 51,337.66, 70,843.89 and 28,676.29

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Solution

The fourth proportional to 51,337.66, 70,843.89 and 28,676.29 is: 39,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,337.66 : 70,843.89 = 28,676.29 : x
  2. Step 2: Convert to fraction form
    51,337.66/70,843.89 = 28,676.29/x
  3. Step 3: Cross multiply
    51,337.66x = 70,843.89 × 28,676.29
  4. Step 4: Simplify right side
    51,337.66x = 2,031,539,864.79
  5. Step 5: Solve for x
    x = 2,031,539,864.79/51,337.66
  6. Step 6: Final answer
    x = 39,572.12

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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.