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Finding the Fourth Proportional to 66,478.29, 99,717.44 and 27,026.16

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Solution

The fourth proportional to 66,478.29, 99,717.44 and 27,026.16 is: 40,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.29 : 99,717.44 = 27,026.16 : x
  2. Step 2: Convert to fraction form
    66,478.29/99,717.44 = 27,026.16/x
  3. Step 3: Cross multiply
    66,478.29x = 99,717.44 × 27,026.16
  4. Step 4: Simplify right side
    66,478.29x = 2,694,979,353.10
  5. Step 5: Solve for x
    x = 2,694,979,353.10/66,478.29
  6. Step 6: Final answer
    x = 40,539.24

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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.