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Finding the Fourth Proportional to 58,955.50, 81,389.97 and 47,344.15

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Solution

The fourth proportional to 58,955.50, 81,389.97 and 47,344.15 is: 65,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,955.50 : 81,389.97 = 47,344.15 : x
  2. Step 2: Convert to fraction form
    58,955.50/81,389.97 = 47,344.15/x
  3. Step 3: Cross multiply
    58,955.50x = 81,389.97 × 47,344.15
  4. Step 4: Simplify right side
    58,955.50x = 3,853,338,948.18
  5. Step 5: Solve for x
    x = 3,853,338,948.18/58,955.50
  6. Step 6: Final answer
    x = 65,360.13

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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.