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Finding the Fourth Proportional to 39,998.92, 59,985.18 and 13,703.08

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Solution

The fourth proportional to 39,998.92, 59,985.18 and 13,703.08 is: 20,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.92 : 59,985.18 = 13,703.08 : x
  2. Step 2: Convert to fraction form
    39,998.92/59,985.18 = 13,703.08/x
  3. Step 3: Cross multiply
    39,998.92x = 59,985.18 × 13,703.08
  4. Step 4: Simplify right side
    39,998.92x = 821,981,720.35
  5. Step 5: Solve for x
    x = 821,981,720.35/39,998.92
  6. Step 6: Final answer
    x = 20,550.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.