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Finding the Fourth Proportional to 9,174.16, 12,654.62 and 7,637.16

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Solution

The fourth proportional to 9,174.16, 12,654.62 and 7,637.16 is: 10,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.16 : 12,654.62 = 7,637.16 : x
  2. Step 2: Convert to fraction form
    9,174.16/12,654.62 = 7,637.16/x
  3. Step 3: Cross multiply
    9,174.16x = 12,654.62 × 7,637.16
  4. Step 4: Simplify right side
    9,174.16x = 96,645,357.68
  5. Step 5: Solve for x
    x = 96,645,357.68/9,174.16
  6. Step 6: Final answer
    x = 10,534.52

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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.