Home / 85,331.25-127,998.71-26,165.61

Finding the Fourth Proportional to 85,331.25, 127,998.71 and 26,165.61

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Solution

The fourth proportional to 85,331.25, 127,998.71 and 26,165.61 is: 39,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.25 : 127,998.71 = 26,165.61 : x
  2. Step 2: Convert to fraction form
    85,331.25/127,998.71 = 26,165.61/x
  3. Step 3: Cross multiply
    85,331.25x = 127,998.71 × 26,165.61
  4. Step 4: Simplify right side
    85,331.25x = 3,349,164,326.36
  5. Step 5: Solve for x
    x = 3,349,164,326.36/85,331.25
  6. Step 6: Final answer
    x = 39,248.98

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Half scale
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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.