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Finding the Fourth Proportional to 57,867.90, 86,800.92 and 18,424.45

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Solution

The fourth proportional to 57,867.90, 86,800.92 and 18,424.45 is: 27,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.90 : 86,800.92 = 18,424.45 : x
  2. Step 2: Convert to fraction form
    57,867.90/86,800.92 = 18,424.45/x
  3. Step 3: Cross multiply
    57,867.90x = 86,800.92 × 18,424.45
  4. Step 4: Simplify right side
    57,867.90x = 1,599,259,210.49
  5. Step 5: Solve for x
    x = 1,599,259,210.49/57,867.90
  6. Step 6: Final answer
    x = 27,636.38

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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.