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Finding the Fourth Proportional to 63,013.38, 86,958.47 and 34,719.67

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Solution

The fourth proportional to 63,013.38, 86,958.47 and 34,719.67 is: 47,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,013.38 : 86,958.47 = 34,719.67 : x
  2. Step 2: Convert to fraction form
    63,013.38/86,958.47 = 34,719.67/x
  3. Step 3: Cross multiply
    63,013.38x = 86,958.47 × 34,719.67
  4. Step 4: Simplify right side
    63,013.38x = 3,019,169,382.10
  5. Step 5: Solve for x
    x = 3,019,169,382.10/63,013.38
  6. Step 6: Final answer
    x = 47,913.15

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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.