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Finding the Fourth Proportional to 22,689.60, 34,066.80 and 17,764.80

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Solution

The fourth proportional to 22,689.60, 34,066.80 and 17,764.80 is: 26,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.60 : 34,066.80 = 17,764.80 : x
  2. Step 2: Convert to fraction form
    22,689.60/34,066.80 = 17,764.80/x
  3. Step 3: Cross multiply
    22,689.60x = 34,066.80 × 17,764.80
  4. Step 4: Simplify right side
    22,689.60x = 605,189,888.64
  5. Step 5: Solve for x
    x = 605,189,888.64/22,689.60
  6. Step 6: Final answer
    x = 26,672.57

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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.