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Finding the Fourth Proportional to 9,195.60, 12,702.73 and 8,854.22

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Solution

The fourth proportional to 9,195.60, 12,702.73 and 8,854.22 is: 12,231.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.60 : 12,702.73 = 8,854.22 : x
  2. Step 2: Convert to fraction form
    9,195.60/12,702.73 = 8,854.22/x
  3. Step 3: Cross multiply
    9,195.60x = 12,702.73 × 8,854.22
  4. Step 4: Simplify right side
    9,195.60x = 112,472,702.51
  5. Step 5: Solve for x
    x = 112,472,702.51/9,195.60
  6. Step 6: Final answer
    x = 12,231.15

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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.