Home / 42,550.76-58,721.10-23,688.20

Finding the Fourth Proportional to 42,550.76, 58,721.10 and 23,688.20

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Solution

The fourth proportional to 42,550.76, 58,721.10 and 23,688.20 is: 32,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,550.76 : 58,721.10 = 23,688.20 : x
  2. Step 2: Convert to fraction form
    42,550.76/58,721.10 = 23,688.20/x
  3. Step 3: Cross multiply
    42,550.76x = 58,721.10 × 23,688.20
  4. Step 4: Simplify right side
    42,550.76x = 1,390,997,161.02
  5. Step 5: Solve for x
    x = 1,390,997,161.02/42,550.76
  6. Step 6: Final answer
    x = 32,690.30

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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.