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Finding the Fourth Proportional to 41,011.77, 61,512.78 and 13,309.77

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Solution

The fourth proportional to 41,011.77, 61,512.78 and 13,309.77 is: 19,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,011.77 : 61,512.78 = 13,309.77 : x
  2. Step 2: Convert to fraction form
    41,011.77/61,512.78 = 13,309.77/x
  3. Step 3: Cross multiply
    41,011.77x = 61,512.78 × 13,309.77
  4. Step 4: Simplify right side
    41,011.77x = 818,720,953.86
  5. Step 5: Solve for x
    x = 818,720,953.86/41,011.77
  6. Step 6: Final answer
    x = 19,963.07

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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.