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Finding the Fourth Proportional to 22,916.80, 34,375.20 and 19,460.80

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Solution

The fourth proportional to 22,916.80, 34,375.20 and 19,460.80 is: 29,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,916.80 : 34,375.20 = 19,460.80 : x
  2. Step 2: Convert to fraction form
    22,916.80/34,375.20 = 19,460.80/x
  3. Step 3: Cross multiply
    22,916.80x = 34,375.20 × 19,460.80
  4. Step 4: Simplify right side
    22,916.80x = 668,968,892.16
  5. Step 5: Solve for x
    x = 668,968,892.16/22,916.80
  6. Step 6: Final answer
    x = 29,191.20

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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.