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Finding the Fourth Proportional to 52,330.90, 72,218.54 and 29,979.22

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Solution

The fourth proportional to 52,330.90, 72,218.54 and 29,979.22 is: 41,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,330.90 : 72,218.54 = 29,979.22 : x
  2. Step 2: Convert to fraction form
    52,330.90/72,218.54 = 29,979.22/x
  3. Step 3: Cross multiply
    52,330.90x = 72,218.54 × 29,979.22
  4. Step 4: Simplify right side
    52,330.90x = 2,165,055,498.74
  5. Step 5: Solve for x
    x = 2,165,055,498.74/52,330.90
  6. Step 6: Final answer
    x = 41,372.41

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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.