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Finding the Fourth Proportional to 58,014.60, 86,906.70 and 31,672.20

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Solution

The fourth proportional to 58,014.60, 86,906.70 and 31,672.20 is: 47,445.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,014.60 : 86,906.70 = 31,672.20 : x
  2. Step 2: Convert to fraction form
    58,014.60/86,906.70 = 31,672.20/x
  3. Step 3: Cross multiply
    58,014.60x = 86,906.70 × 31,672.20
  4. Step 4: Simplify right side
    58,014.60x = 2,752,526,383.74
  5. Step 5: Solve for x
    x = 2,752,526,383.74/58,014.60
  6. Step 6: Final answer
    x = 47,445.41

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1.5x scale

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.