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Finding the Fourth Proportional to 43,988.59, 65,976.90 and 14,402.89

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Solution

The fourth proportional to 43,988.59, 65,976.90 and 14,402.89 is: 21,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,988.59 : 65,976.90 = 14,402.89 : x
  2. Step 2: Convert to fraction form
    43,988.59/65,976.90 = 14,402.89/x
  3. Step 3: Cross multiply
    43,988.59x = 65,976.90 × 14,402.89
  4. Step 4: Simplify right side
    43,988.59x = 950,258,033.24
  5. Step 5: Solve for x
    x = 950,258,033.24/43,988.59
  6. Step 6: Final answer
    x = 21,602.38

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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.