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Finding the Fourth Proportional to 58,954.50, 81,388.56 and 47,343.12

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Solution

The fourth proportional to 58,954.50, 81,388.56 and 47,343.12 is: 65,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,954.50 : 81,388.56 = 47,343.12 : x
  2. Step 2: Convert to fraction form
    58,954.50/81,388.56 = 47,343.12/x
  3. Step 3: Cross multiply
    58,954.50x = 81,388.56 × 47,343.12
  4. Step 4: Simplify right side
    58,954.50x = 3,853,188,362.71
  5. Step 5: Solve for x
    x = 3,853,188,362.71/58,954.50
  6. Step 6: Final answer
    x = 65,358.68

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1.5x scale

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.