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Finding the Fourth Proportional to 60,039.96, 90,065.06 and 17,917.32

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Solution

The fourth proportional to 60,039.96, 90,065.06 and 17,917.32 is: 26,877.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,039.96 : 90,065.06 = 17,917.32 : x
  2. Step 2: Convert to fraction form
    60,039.96/90,065.06 = 17,917.32/x
  3. Step 3: Cross multiply
    60,039.96x = 90,065.06 × 17,917.32
  4. Step 4: Simplify right side
    60,039.96x = 1,613,724,500.84
  5. Step 5: Solve for x
    x = 1,613,724,500.84/60,039.96
  6. Step 6: Final answer
    x = 26,877.51

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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.