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Finding the Fourth Proportional to 39,998.88, 55,172.88 and 24,088.32

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Solution

The fourth proportional to 39,998.88, 55,172.88 and 24,088.32 is: 33,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.88 : 55,172.88 = 24,088.32 : x
  2. Step 2: Convert to fraction form
    39,998.88/55,172.88 = 24,088.32/x
  3. Step 3: Cross multiply
    39,998.88x = 55,172.88 × 24,088.32
  4. Step 4: Simplify right side
    39,998.88x = 1,329,021,988.76
  5. Step 5: Solve for x
    x = 1,329,021,988.76/39,998.88
  6. Step 6: Final answer
    x = 33,226.48

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Similar ratio
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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.