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Finding the Fourth Proportional to 9,042.10, 13,542.09 and 8,792.97

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Solution

The fourth proportional to 9,042.10, 13,542.09 and 8,792.97 is: 13,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,042.10 : 13,542.09 = 8,792.97 : x
  2. Step 2: Convert to fraction form
    9,042.10/13,542.09 = 8,792.97/x
  3. Step 3: Cross multiply
    9,042.10x = 13,542.09 × 8,792.97
  4. Step 4: Simplify right side
    9,042.10x = 119,075,191.11
  5. Step 5: Solve for x
    x = 119,075,191.11/9,042.10
  6. Step 6: Final answer
    x = 13,168.98

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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.