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Finding the Fourth Proportional to 8,708.48, 13,001.08 and 7,396.64

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Solution

The fourth proportional to 8,708.48, 13,001.08 and 7,396.64 is: 11,042.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.48 : 13,001.08 = 7,396.64 : x
  2. Step 2: Convert to fraction form
    8,708.48/13,001.08 = 7,396.64/x
  3. Step 3: Cross multiply
    8,708.48x = 13,001.08 × 7,396.64
  4. Step 4: Simplify right side
    8,708.48x = 96,164,308.37
  5. Step 5: Solve for x
    x = 96,164,308.37/8,708.48
  6. Step 6: Final answer
    x = 11,042.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.