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Finding the Fourth Proportional to 17,862.60, 26,793.90 and 17,555.40

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Solution

The fourth proportional to 17,862.60, 26,793.90 and 17,555.40 is: 26,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,862.60 : 26,793.90 = 17,555.40 : x
  2. Step 2: Convert to fraction form
    17,862.60/26,793.90 = 17,555.40/x
  3. Step 3: Cross multiply
    17,862.60x = 26,793.90 × 17,555.40
  4. Step 4: Simplify right side
    17,862.60x = 470,377,632.06
  5. Step 5: Solve for x
    x = 470,377,632.06/17,862.60
  6. Step 6: Final answer
    x = 26,333.10

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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.