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Finding the Fourth Proportional to 61,550.64, 84,950.64 and 36,401.76

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Solution

The fourth proportional to 61,550.64, 84,950.64 and 36,401.76 is: 50,240.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,550.64 : 84,950.64 = 36,401.76 : x
  2. Step 2: Convert to fraction form
    61,550.64/84,950.64 = 36,401.76/x
  3. Step 3: Cross multiply
    61,550.64x = 84,950.64 × 36,401.76
  4. Step 4: Simplify right side
    61,550.64x = 3,092,352,809.13
  5. Step 5: Solve for x
    x = 3,092,352,809.13/61,550.64
  6. Step 6: Final answer
    x = 50,240.79

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1.5x scale

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.