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Finding the Fourth Proportional to 9,866.55, 13,612.68 and 7,034.43

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Solution

The fourth proportional to 9,866.55, 13,612.68 and 7,034.43 is: 9,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.55 : 13,612.68 = 7,034.43 : x
  2. Step 2: Convert to fraction form
    9,866.55/13,612.68 = 7,034.43/x
  3. Step 3: Cross multiply
    9,866.55x = 13,612.68 × 7,034.43
  4. Step 4: Simplify right side
    9,866.55x = 95,757,444.57
  5. Step 5: Solve for x
    x = 95,757,444.57/9,866.55
  6. Step 6: Final answer
    x = 9,705.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.