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Finding the Fourth Proportional to 38,765.86, 58,148.79 and 11,063.86

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Solution

The fourth proportional to 38,765.86, 58,148.79 and 11,063.86 is: 16,595.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.86 : 58,148.79 = 11,063.86 : x
  2. Step 2: Convert to fraction form
    38,765.86/58,148.79 = 11,063.86/x
  3. Step 3: Cross multiply
    38,765.86x = 58,148.79 × 11,063.86
  4. Step 4: Simplify right side
    38,765.86x = 643,350,071.73
  5. Step 5: Solve for x
    x = 643,350,071.73/38,765.86
  6. Step 6: Final answer
    x = 16,595.79

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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.