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Finding the Fourth Proportional to 44,781.88, 67,070.70 and 21,424.84

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Solution

The fourth proportional to 44,781.88, 67,070.70 and 21,424.84 is: 32,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,781.88 : 67,070.70 = 21,424.84 : x
  2. Step 2: Convert to fraction form
    44,781.88/67,070.70 = 21,424.84/x
  3. Step 3: Cross multiply
    44,781.88x = 67,070.70 × 21,424.84
  4. Step 4: Simplify right side
    44,781.88x = 1,436,979,016.19
  5. Step 5: Solve for x
    x = 1,436,979,016.19/44,781.88
  6. Step 6: Final answer
    x = 32,088.40

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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.