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Finding the Fourth Proportional to 7,079.84, 9,775.92 and 6,332.48

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Solution

The fourth proportional to 7,079.84, 9,775.92 and 6,332.48 is: 8,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.84 : 9,775.92 = 6,332.48 : x
  2. Step 2: Convert to fraction form
    7,079.84/9,775.92 = 6,332.48/x
  3. Step 3: Cross multiply
    7,079.84x = 9,775.92 × 6,332.48
  4. Step 4: Simplify right side
    7,079.84x = 61,905,817.88
  5. Step 5: Solve for x
    x = 61,905,817.88/7,079.84
  6. Step 6: Final answer
    x = 8,743.96

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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.