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Finding the Fourth Proportional to 51,570.70, 71,162.22 and 30,348.70

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Solution

The fourth proportional to 51,570.70, 71,162.22 and 30,348.70 is: 41,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,570.70 : 71,162.22 = 30,348.70 : x
  2. Step 2: Convert to fraction form
    51,570.70/71,162.22 = 30,348.70/x
  3. Step 3: Cross multiply
    51,570.70x = 71,162.22 × 30,348.70
  4. Step 4: Simplify right side
    51,570.70x = 2,159,680,866.11
  5. Step 5: Solve for x
    x = 2,159,680,866.11/51,570.70
  6. Step 6: Final answer
    x = 41,878.06

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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.