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Finding the Fourth Proportional to 18,298.48, 27,455.93 and 8,432.48

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Solution

The fourth proportional to 18,298.48, 27,455.93 and 8,432.48 is: 12,652.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.48 : 27,455.93 = 8,432.48 : x
  2. Step 2: Convert to fraction form
    18,298.48/27,455.93 = 8,432.48/x
  3. Step 3: Cross multiply
    18,298.48x = 27,455.93 × 8,432.48
  4. Step 4: Simplify right side
    18,298.48x = 231,521,580.61
  5. Step 5: Solve for x
    x = 231,521,580.61/18,298.48
  6. Step 6: Final answer
    x = 12,652.50

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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.