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Finding the Fourth Proportional to 52,339.72, 78,479.85 and 35,719.89

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Solution

The fourth proportional to 52,339.72, 78,479.85 and 35,719.89 is: 53,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,339.72 : 78,479.85 = 35,719.89 : x
  2. Step 2: Convert to fraction form
    52,339.72/78,479.85 = 35,719.89/x
  3. Step 3: Cross multiply
    52,339.72x = 78,479.85 × 35,719.89
  4. Step 4: Simplify right side
    52,339.72x = 2,803,291,609.22
  5. Step 5: Solve for x
    x = 2,803,291,609.22/52,339.72
  6. Step 6: Final answer
    x = 53,559.55

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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.