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Finding the Fourth Proportional to 66,436.52, 99,654.78 and 45,596.84

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Solution

The fourth proportional to 66,436.52, 99,654.78 and 45,596.84 is: 68,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.52 : 99,654.78 = 45,596.84 : x
  2. Step 2: Convert to fraction form
    66,436.52/99,654.78 = 45,596.84/x
  3. Step 3: Cross multiply
    66,436.52x = 99,654.78 × 45,596.84
  4. Step 4: Simplify right side
    66,436.52x = 4,543,943,058.90
  5. Step 5: Solve for x
    x = 4,543,943,058.90/66,436.52
  6. Step 6: Final answer
    x = 68,395.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.