Home / 29,089.76-40,142.76-17,778.18

Finding the Fourth Proportional to 29,089.76, 40,142.76 and 17,778.18

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Solution

The fourth proportional to 29,089.76, 40,142.76 and 17,778.18 is: 24,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,089.76 : 40,142.76 = 17,778.18 : x
  2. Step 2: Convert to fraction form
    29,089.76/40,142.76 = 17,778.18/x
  3. Step 3: Cross multiply
    29,089.76x = 40,142.76 × 17,778.18
  4. Step 4: Simplify right side
    29,089.76x = 713,665,212.98
  5. Step 5: Solve for x
    x = 713,665,212.98/29,089.76
  6. Step 6: Final answer
    x = 24,533.21

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.