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Finding the Fourth Proportional to 26,869.60, 40,304.40 and 15,205.60

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Solution

The fourth proportional to 26,869.60, 40,304.40 and 15,205.60 is: 22,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,869.60 : 40,304.40 = 15,205.60 : x
  2. Step 2: Convert to fraction form
    26,869.60/40,304.40 = 15,205.60/x
  3. Step 3: Cross multiply
    26,869.60x = 40,304.40 × 15,205.60
  4. Step 4: Simplify right side
    26,869.60x = 612,852,584.64
  5. Step 5: Solve for x
    x = 612,852,584.64/26,869.60
  6. Step 6: Final answer
    x = 22,808.40

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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.