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Finding the Fourth Proportional to 86,686.59, 119,625.80 and 48,446.49

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Solution

The fourth proportional to 86,686.59, 119,625.80 and 48,446.49 is: 66,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,686.59 : 119,625.80 = 48,446.49 : x
  2. Step 2: Convert to fraction form
    86,686.59/119,625.80 = 48,446.49/x
  3. Step 3: Cross multiply
    86,686.59x = 119,625.80 × 48,446.49
  4. Step 4: Simplify right side
    86,686.59x = 5,795,449,881.21
  5. Step 5: Solve for x
    x = 5,795,449,881.21/86,686.59
  6. Step 6: Final answer
    x = 66,855.21

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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.