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Finding the Fourth Proportional to 77,892.84, 107,495.24 and 43,902.74

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Solution

The fourth proportional to 77,892.84, 107,495.24 and 43,902.74 is: 60,587.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,892.84 : 107,495.24 = 43,902.74 : x
  2. Step 2: Convert to fraction form
    77,892.84/107,495.24 = 43,902.74/x
  3. Step 3: Cross multiply
    77,892.84x = 107,495.24 × 43,902.74
  4. Step 4: Simplify right side
    77,892.84x = 4,719,335,622.18
  5. Step 5: Solve for x
    x = 4,719,335,622.18/77,892.84
  6. Step 6: Final answer
    x = 60,587.54

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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.