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Finding the Fourth Proportional to 11,063.60, 16,627.80 and 10,869.20

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Solution

The fourth proportional to 11,063.60, 16,627.80 and 10,869.20 is: 16,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,063.60 : 16,627.80 = 10,869.20 : x
  2. Step 2: Convert to fraction form
    11,063.60/16,627.80 = 10,869.20/x
  3. Step 3: Cross multiply
    11,063.60x = 16,627.80 × 10,869.20
  4. Step 4: Simplify right side
    11,063.60x = 180,730,883.76
  5. Step 5: Solve for x
    x = 180,730,883.76/11,063.60
  6. Step 6: Final answer
    x = 16,335.63

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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.