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Finding the Fourth Proportional to 66,356.66, 99,301.12 and 41,408.45

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Solution

The fourth proportional to 66,356.66, 99,301.12 and 41,408.45 is: 61,966.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,356.66 : 99,301.12 = 41,408.45 : x
  2. Step 2: Convert to fraction form
    66,356.66/99,301.12 = 41,408.45/x
  3. Step 3: Cross multiply
    66,356.66x = 99,301.12 × 41,408.45
  4. Step 4: Simplify right side
    66,356.66x = 4,111,904,862.44
  5. Step 5: Solve for x
    x = 4,111,904,862.44/66,356.66
  6. Step 6: Final answer
    x = 61,966.73

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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.