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Finding the Fourth Proportional to 64,356.86, 88,814.87 and 36,061.50

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Solution

The fourth proportional to 64,356.86, 88,814.87 and 36,061.50 is: 49,766.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,356.86 : 88,814.87 = 36,061.50 : x
  2. Step 2: Convert to fraction form
    64,356.86/88,814.87 = 36,061.50/x
  3. Step 3: Cross multiply
    64,356.86x = 88,814.87 × 36,061.50
  4. Step 4: Simplify right side
    64,356.86x = 3,202,797,434.51
  5. Step 5: Solve for x
    x = 3,202,797,434.51/64,356.86
  6. Step 6: Final answer
    x = 49,766.22

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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.