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Finding the Fourth Proportional to 58,165.76, 87,230.14 and 18,713.69

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Solution

The fourth proportional to 58,165.76, 87,230.14 and 18,713.69 is: 28,064.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,165.76 : 87,230.14 = 18,713.69 : x
  2. Step 2: Convert to fraction form
    58,165.76/87,230.14 = 18,713.69/x
  3. Step 3: Cross multiply
    58,165.76x = 87,230.14 × 18,713.69
  4. Step 4: Simplify right side
    58,165.76x = 1,632,397,798.62
  5. Step 5: Solve for x
    x = 1,632,397,798.62/58,165.76
  6. Step 6: Final answer
    x = 28,064.58

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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.