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Finding the Fourth Proportional to 41,142.51, 61,713.77 and 9,977.76

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Solution

The fourth proportional to 41,142.51, 61,713.77 and 9,977.76 is: 14,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,142.51 : 61,713.77 = 9,977.76 : x
  2. Step 2: Convert to fraction form
    41,142.51/61,713.77 = 9,977.76/x
  3. Step 3: Cross multiply
    41,142.51x = 61,713.77 × 9,977.76
  4. Step 4: Simplify right side
    41,142.51x = 615,765,185.76
  5. Step 5: Solve for x
    x = 615,765,185.76/41,142.51
  6. Step 6: Final answer
    x = 14,966.64

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Double scale
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Similar ratio
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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.