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Finding the Fourth Proportional to 77,447.66, 106,882.08 and 43,466.90

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Solution

The fourth proportional to 77,447.66, 106,882.08 and 43,466.90 is: 59,986.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,447.66 : 106,882.08 = 43,466.90 : x
  2. Step 2: Convert to fraction form
    77,447.66/106,882.08 = 43,466.90/x
  3. Step 3: Cross multiply
    77,447.66x = 106,882.08 × 43,466.90
  4. Step 4: Simplify right side
    77,447.66x = 4,645,832,683.15
  5. Step 5: Solve for x
    x = 4,645,832,683.15/77,447.66
  6. Step 6: Final answer
    x = 59,986.74

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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.