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Finding the Fourth Proportional to 58,168.48, 87,269.91 and 18,724.63

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Solution

The fourth proportional to 58,168.48, 87,269.91 and 18,724.63 is: 28,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,168.48 : 87,269.91 = 18,724.63 : x
  2. Step 2: Convert to fraction form
    58,168.48/87,269.91 = 18,724.63/x
  3. Step 3: Cross multiply
    58,168.48x = 87,269.91 × 18,724.63
  4. Step 4: Simplify right side
    58,168.48x = 1,634,096,774.88
  5. Step 5: Solve for x
    x = 1,634,096,774.88/58,168.48
  6. Step 6: Final answer
    x = 28,092.48

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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.