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Finding the Fourth Proportional to 12,608.60, 17,402.86 and 7,306.32

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Solution

The fourth proportional to 12,608.60, 17,402.86 and 7,306.32 is: 10,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.60 : 17,402.86 = 7,306.32 : x
  2. Step 2: Convert to fraction form
    12,608.60/17,402.86 = 7,306.32/x
  3. Step 3: Cross multiply
    12,608.60x = 17,402.86 × 7,306.32
  4. Step 4: Simplify right side
    12,608.60x = 127,150,864.08
  5. Step 5: Solve for x
    x = 127,150,864.08/12,608.60
  6. Step 6: Final answer
    x = 10,084.46

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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.