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Finding the Fourth Proportional to 9,602.70, 13,239.78 and 8,011.66

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Solution

The fourth proportional to 9,602.70, 13,239.78 and 8,011.66 is: 11,046.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,602.70 : 13,239.78 = 8,011.66 : x
  2. Step 2: Convert to fraction form
    9,602.70/13,239.78 = 8,011.66/x
  3. Step 3: Cross multiply
    9,602.70x = 13,239.78 × 8,011.66
  4. Step 4: Simplify right side
    9,602.70x = 106,072,615.83
  5. Step 5: Solve for x
    x = 106,072,615.83/9,602.70
  6. Step 6: Final answer
    x = 11,046.12

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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.