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Finding the Fourth Proportional to 66,235.60, 99,353.40 and 26,772.40

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Solution

The fourth proportional to 66,235.60, 99,353.40 and 26,772.40 is: 40,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.60 : 99,353.40 = 26,772.40 : x
  2. Step 2: Convert to fraction form
    66,235.60/99,353.40 = 26,772.40/x
  3. Step 3: Cross multiply
    66,235.60x = 99,353.40 × 26,772.40
  4. Step 4: Simplify right side
    66,235.60x = 2,659,928,966.16
  5. Step 5: Solve for x
    x = 2,659,928,966.16/66,235.60
  6. Step 6: Final answer
    x = 40,158.60

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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.