Home / 71,017.89-98,004.57-39,186.76

Finding the Fourth Proportional to 71,017.89, 98,004.57 and 39,186.76

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Solution

The fourth proportional to 71,017.89, 98,004.57 and 39,186.76 is: 54,077.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,017.89 : 98,004.57 = 39,186.76 : x
  2. Step 2: Convert to fraction form
    71,017.89/98,004.57 = 39,186.76/x
  3. Step 3: Cross multiply
    71,017.89x = 98,004.57 × 39,186.76
  4. Step 4: Simplify right side
    71,017.89x = 3,840,481,318.48
  5. Step 5: Solve for x
    x = 3,840,481,318.48/71,017.89
  6. Step 6: Final answer
    x = 54,077.66

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Half scale
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Double scale
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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.