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Finding the Fourth Proportional to 62,642.88, 86,446.44 and 34,348.32

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Solution

The fourth proportional to 62,642.88, 86,446.44 and 34,348.32 is: 47,400.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,642.88 : 86,446.44 = 34,348.32 : x
  2. Step 2: Convert to fraction form
    62,642.88/86,446.44 = 34,348.32/x
  3. Step 3: Cross multiply
    62,642.88x = 86,446.44 × 34,348.32
  4. Step 4: Simplify right side
    62,642.88x = 2,969,289,983.98
  5. Step 5: Solve for x
    x = 2,969,289,983.98/62,642.88
  6. Step 6: Final answer
    x = 47,400.28

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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.