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Finding the Fourth Proportional to 22,901.60, 34,352.40 and 17,986.40

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Solution

The fourth proportional to 22,901.60, 34,352.40 and 17,986.40 is: 26,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,901.60 : 34,352.40 = 17,986.40 : x
  2. Step 2: Convert to fraction form
    22,901.60/34,352.40 = 17,986.40/x
  3. Step 3: Cross multiply
    22,901.60x = 34,352.40 × 17,986.40
  4. Step 4: Simplify right side
    22,901.60x = 617,876,007.36
  5. Step 5: Solve for x
    x = 617,876,007.36/22,901.60
  6. Step 6: Final answer
    x = 26,979.60

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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.