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Finding the Fourth Proportional to 8,869.55, 12,244.98 and 5,889.46

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Solution

The fourth proportional to 8,869.55, 12,244.98 and 5,889.46 is: 8,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.55 : 12,244.98 = 5,889.46 : x
  2. Step 2: Convert to fraction form
    8,869.55/12,244.98 = 5,889.46/x
  3. Step 3: Cross multiply
    8,869.55x = 12,244.98 × 5,889.46
  4. Step 4: Simplify right side
    8,869.55x = 72,116,319.91
  5. Step 5: Solve for x
    x = 72,116,319.91/8,869.55
  6. Step 6: Final answer
    x = 8,130.78

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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.