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Finding the Fourth Proportional to 66,546.98, 99,907.95 and 61,045.46

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Solution

The fourth proportional to 66,546.98, 99,907.95 and 61,045.46 is: 91,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.98 : 99,907.95 = 61,045.46 : x
  2. Step 2: Convert to fraction form
    66,546.98/99,907.95 = 61,045.46/x
  3. Step 3: Cross multiply
    66,546.98x = 99,907.95 × 61,045.46
  4. Step 4: Simplify right side
    66,546.98x = 6,098,926,765.41
  5. Step 5: Solve for x
    x = 6,098,926,765.41/66,546.98
  6. Step 6: Final answer
    x = 91,648.44

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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.