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Finding the Fourth Proportional to 22,378.20, 33,681.03 and 16,859.40

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Solution

The fourth proportional to 22,378.20, 33,681.03 and 16,859.40 is: 25,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.20 : 33,681.03 = 16,859.40 : x
  2. Step 2: Convert to fraction form
    22,378.20/33,681.03 = 16,859.40/x
  3. Step 3: Cross multiply
    22,378.20x = 33,681.03 × 16,859.40
  4. Step 4: Simplify right side
    22,378.20x = 567,841,957.18
  5. Step 5: Solve for x
    x = 567,841,957.18/22,378.20
  6. Step 6: Final answer
    x = 25,374.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.