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Finding the Fourth Proportional to 9,761.01, 13,470.20 and 5,284.76

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Solution

The fourth proportional to 9,761.01, 13,470.20 and 5,284.76 is: 7,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,761.01 : 13,470.20 = 5,284.76 : x
  2. Step 2: Convert to fraction form
    9,761.01/13,470.20 = 5,284.76/x
  3. Step 3: Cross multiply
    9,761.01x = 13,470.20 × 5,284.76
  4. Step 4: Simplify right side
    9,761.01x = 71,186,680.38
  5. Step 5: Solve for x
    x = 71,186,680.38/9,761.01
  6. Step 6: Final answer
    x = 7,292.96

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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.