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Finding the Fourth Proportional to 40,811.51, 61,195.51 and 14,150.71

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Solution

The fourth proportional to 40,811.51, 61,195.51 and 14,150.71 is: 21,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.51 : 61,195.51 = 14,150.71 : x
  2. Step 2: Convert to fraction form
    40,811.51/61,195.51 = 14,150.71/x
  3. Step 3: Cross multiply
    40,811.51x = 61,195.51 × 14,150.71
  4. Step 4: Simplify right side
    40,811.51x = 865,960,009.49
  5. Step 5: Solve for x
    x = 865,960,009.49/40,811.51
  6. Step 6: Final answer
    x = 21,218.52

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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.