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Finding the Fourth Proportional to 71,066.32, 106,580.02 and 26,689.64

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Solution

The fourth proportional to 71,066.32, 106,580.02 and 26,689.64 is: 40,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,066.32 : 106,580.02 = 26,689.64 : x
  2. Step 2: Convert to fraction form
    71,066.32/106,580.02 = 26,689.64/x
  3. Step 3: Cross multiply
    71,066.32x = 106,580.02 × 26,689.64
  4. Step 4: Simplify right side
    71,066.32x = 2,844,582,364.99
  5. Step 5: Solve for x
    x = 2,844,582,364.99/71,066.32
  6. Step 6: Final answer
    x = 40,027.15

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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.