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Finding the Fourth Proportional to 58,163.76, 87,248.88 and 18,717.84

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Solution

The fourth proportional to 58,163.76, 87,248.88 and 18,717.84 is: 28,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,163.76 : 87,248.88 = 18,717.84 : x
  2. Step 2: Convert to fraction form
    58,163.76/87,248.88 = 18,717.84/x
  3. Step 3: Cross multiply
    58,163.76x = 87,248.88 × 18,717.84
  4. Step 4: Simplify right side
    58,163.76x = 1,633,110,576.02
  5. Step 5: Solve for x
    x = 1,633,110,576.02/58,163.76
  6. Step 6: Final answer
    x = 28,077.80

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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.