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Finding the Fourth Proportional to 62,622.87, 86,418.90 and 34,328.40

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Solution

The fourth proportional to 62,622.87, 86,418.90 and 34,328.40 is: 47,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,622.87 : 86,418.90 = 34,328.40 : x
  2. Step 2: Convert to fraction form
    62,622.87/86,418.90 = 34,328.40/x
  3. Step 3: Cross multiply
    62,622.87x = 86,418.90 × 34,328.40
  4. Step 4: Simplify right side
    62,622.87x = 2,966,622,566.76
  5. Step 5: Solve for x
    x = 2,966,622,566.76/62,622.87
  6. Step 6: Final answer
    x = 47,372.83

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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.