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Finding the Fourth Proportional to 8,797.57, 12,140.19 and 4,817.91

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Solution

The fourth proportional to 8,797.57, 12,140.19 and 4,817.91 is: 6,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.57 : 12,140.19 = 4,817.91 : x
  2. Step 2: Convert to fraction form
    8,797.57/12,140.19 = 4,817.91/x
  3. Step 3: Cross multiply
    8,797.57x = 12,140.19 × 4,817.91
  4. Step 4: Simplify right side
    8,797.57x = 58,490,342.80
  5. Step 5: Solve for x
    x = 58,490,342.80/8,797.57
  6. Step 6: Final answer
    x = 6,648.47

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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.