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Finding the Fourth Proportional to 51,608.67, 71,220.78 and 28,952.70

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Solution

The fourth proportional to 51,608.67, 71,220.78 and 28,952.70 is: 39,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,608.67 : 71,220.78 = 28,952.70 : x
  2. Step 2: Convert to fraction form
    51,608.67/71,220.78 = 28,952.70/x
  3. Step 3: Cross multiply
    51,608.67x = 71,220.78 × 28,952.70
  4. Step 4: Simplify right side
    51,608.67x = 2,062,033,877.11
  5. Step 5: Solve for x
    x = 2,062,033,877.11/51,608.67
  6. Step 6: Final answer
    x = 39,955.18

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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.