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Finding the Fourth Proportional to 47,609.80, 65,733.60 and 42,557.88

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Solution

The fourth proportional to 47,609.80, 65,733.60 and 42,557.88 is: 58,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,609.80 : 65,733.60 = 42,557.88 : x
  2. Step 2: Convert to fraction form
    47,609.80/65,733.60 = 42,557.88/x
  3. Step 3: Cross multiply
    47,609.80x = 65,733.60 × 42,557.88
  4. Step 4: Simplify right side
    47,609.80x = 2,797,482,660.77
  5. Step 5: Solve for x
    x = 2,797,482,660.77/47,609.80
  6. Step 6: Final answer
    x = 58,758.55

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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.