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Finding the Fourth Proportional to 39,514.74, 59,268.87 and 11,812.74

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Solution

The fourth proportional to 39,514.74, 59,268.87 and 11,812.74 is: 17,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,514.74 : 59,268.87 = 11,812.74 : x
  2. Step 2: Convert to fraction form
    39,514.74/59,268.87 = 11,812.74/x
  3. Step 3: Cross multiply
    39,514.74x = 59,268.87 × 11,812.74
  4. Step 4: Simplify right side
    39,514.74x = 700,127,751.40
  5. Step 5: Solve for x
    x = 700,127,751.40/39,514.74
  6. Step 6: Final answer
    x = 17,718.14

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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.