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Finding the Fourth Proportional to 7,411.70, 11,117.55 and 6,569.30

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Solution

The fourth proportional to 7,411.70, 11,117.55 and 6,569.30 is: 9,853.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.70 : 11,117.55 = 6,569.30 : x
  2. Step 2: Convert to fraction form
    7,411.70/11,117.55 = 6,569.30/x
  3. Step 3: Cross multiply
    7,411.70x = 11,117.55 × 6,569.30
  4. Step 4: Simplify right side
    7,411.70x = 73,034,521.22
  5. Step 5: Solve for x
    x = 73,034,521.22/7,411.70
  6. Step 6: Final answer
    x = 9,853.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.