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Finding the Fourth Proportional to 56,959.39, 85,390.65 and 34,788.34

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Solution

The fourth proportional to 56,959.39, 85,390.65 and 34,788.34 is: 52,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,959.39 : 85,390.65 = 34,788.34 : x
  2. Step 2: Convert to fraction form
    56,959.39/85,390.65 = 34,788.34/x
  3. Step 3: Cross multiply
    56,959.39x = 85,390.65 × 34,788.34
  4. Step 4: Simplify right side
    56,959.39x = 2,970,598,965.02
  5. Step 5: Solve for x
    x = 2,970,598,965.02/56,959.39
  6. Step 6: Final answer
    x = 52,152.93

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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.