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Finding the Fourth Proportional to 63,031.44, 86,981.68 and 34,737.12

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Solution

The fourth proportional to 63,031.44, 86,981.68 and 34,737.12 is: 47,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,031.44 : 86,981.68 = 34,737.12 : x
  2. Step 2: Convert to fraction form
    63,031.44/86,981.68 = 34,737.12/x
  3. Step 3: Cross multiply
    63,031.44x = 86,981.68 × 34,737.12
  4. Step 4: Simplify right side
    63,031.44x = 3,021,493,055.96
  5. Step 5: Solve for x
    x = 3,021,493,055.96/63,031.44
  6. Step 6: Final answer
    x = 47,936.28

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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.