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Finding the Fourth Proportional to 62,920.36, 86,830.71 and 34,626.70

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Solution

The fourth proportional to 62,920.36, 86,830.71 and 34,626.70 is: 47,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,920.36 : 86,830.71 = 34,626.70 : x
  2. Step 2: Convert to fraction form
    62,920.36/86,830.71 = 34,626.70/x
  3. Step 3: Cross multiply
    62,920.36x = 86,830.71 × 34,626.70
  4. Step 4: Simplify right side
    62,920.36x = 3,006,660,945.96
  5. Step 5: Solve for x
    x = 3,006,660,945.96/62,920.36
  6. Step 6: Final answer
    x = 47,785.18

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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.