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Finding the Fourth Proportional to 45,755.98, 68,329.47 and 45,261.17

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Solution

The fourth proportional to 45,755.98, 68,329.47 and 45,261.17 is: 67,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,755.98 : 68,329.47 = 45,261.17 : x
  2. Step 2: Convert to fraction form
    45,755.98/68,329.47 = 45,261.17/x
  3. Step 3: Cross multiply
    45,755.98x = 68,329.47 × 45,261.17
  4. Step 4: Simplify right side
    45,755.98x = 3,092,671,757.68
  5. Step 5: Solve for x
    x = 3,092,671,757.68/45,755.98
  6. Step 6: Final answer
    x = 67,590.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.