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Finding the Fourth Proportional to 47,449.95, 65,479.19 and 27,309.93

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Solution

The fourth proportional to 47,449.95, 65,479.19 and 27,309.93 is: 37,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,449.95 : 65,479.19 = 27,309.93 : x
  2. Step 2: Convert to fraction form
    47,449.95/65,479.19 = 27,309.93/x
  3. Step 3: Cross multiply
    47,449.95x = 65,479.19 × 27,309.93
  4. Step 4: Simplify right side
    47,449.95x = 1,788,231,958.81
  5. Step 5: Solve for x
    x = 1,788,231,958.81/47,449.95
  6. Step 6: Final answer
    x = 37,686.70

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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.