Home / 42,085.84-58,074.40-23,221.76

Finding the Fourth Proportional to 42,085.84, 58,074.40 and 23,221.76

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Solution

The fourth proportional to 42,085.84, 58,074.40 and 23,221.76 is: 32,043.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,085.84 : 58,074.40 = 23,221.76 : x
  2. Step 2: Convert to fraction form
    42,085.84/58,074.40 = 23,221.76/x
  3. Step 3: Cross multiply
    42,085.84x = 58,074.40 × 23,221.76
  4. Step 4: Simplify right side
    42,085.84x = 1,348,589,778.94
  5. Step 5: Solve for x
    x = 1,348,589,778.94/42,085.84
  6. Step 6: Final answer
    x = 32,043.79

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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.