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Finding the Fourth Proportional to 52,881.50, 72,976.28 and 29,008.20

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Solution

The fourth proportional to 52,881.50, 72,976.28 and 29,008.20 is: 40,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,881.50 : 72,976.28 = 29,008.20 : x
  2. Step 2: Convert to fraction form
    52,881.50/72,976.28 = 29,008.20/x
  3. Step 3: Cross multiply
    52,881.50x = 72,976.28 × 29,008.20
  4. Step 4: Simplify right side
    52,881.50x = 2,116,910,525.50
  5. Step 5: Solve for x
    x = 2,116,910,525.50/52,881.50
  6. Step 6: Final answer
    x = 40,031.21

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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.