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Finding the Fourth Proportional to 39,498.77, 54,508.29 and 21,593.77

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Solution

The fourth proportional to 39,498.77, 54,508.29 and 21,593.77 is: 29,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,498.77 : 54,508.29 = 21,593.77 : x
  2. Step 2: Convert to fraction form
    39,498.77/54,508.29 = 21,593.77/x
  3. Step 3: Cross multiply
    39,498.77x = 54,508.29 × 21,593.77
  4. Step 4: Simplify right side
    39,498.77x = 1,177,039,477.35
  5. Step 5: Solve for x
    x = 1,177,039,477.35/39,498.77
  6. Step 6: Final answer
    x = 29,799.40

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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.