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Finding the Fourth Proportional to 22,008.40, 32,916.60 and 19,685.20

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Solution

The fourth proportional to 22,008.40, 32,916.60 and 19,685.20 is: 29,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,008.40 : 32,916.60 = 19,685.20 : x
  2. Step 2: Convert to fraction form
    22,008.40/32,916.60 = 19,685.20/x
  3. Step 3: Cross multiply
    22,008.40x = 32,916.60 × 19,685.20
  4. Step 4: Simplify right side
    22,008.40x = 647,969,854.32
  5. Step 5: Solve for x
    x = 647,969,854.32/22,008.40
  6. Step 6: Final answer
    x = 29,441.93

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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.