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Finding the Fourth Proportional to 56,842.72, 85,264.22 and 17,399.68

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Solution

The fourth proportional to 56,842.72, 85,264.22 and 17,399.68 is: 26,099.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,842.72 : 85,264.22 = 17,399.68 : x
  2. Step 2: Convert to fraction form
    56,842.72/85,264.22 = 17,399.68/x
  3. Step 3: Cross multiply
    56,842.72x = 85,264.22 × 17,399.68
  4. Step 4: Simplify right side
    56,842.72x = 1,483,570,143.45
  5. Step 5: Solve for x
    x = 1,483,570,143.45/56,842.72
  6. Step 6: Final answer
    x = 26,099.56

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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.