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Finding the Fourth Proportional to 18,335.76, 27,483.48 and 12,002.96

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Solution

The fourth proportional to 18,335.76, 27,483.48 and 12,002.96 is: 17,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.76 : 27,483.48 = 12,002.96 : x
  2. Step 2: Convert to fraction form
    18,335.76/27,483.48 = 12,002.96/x
  3. Step 3: Cross multiply
    18,335.76x = 27,483.48 × 12,002.96
  4. Step 4: Simplify right side
    18,335.76x = 329,883,111.10
  5. Step 5: Solve for x
    x = 329,883,111.10/18,335.76
  6. Step 6: Final answer
    x = 17,991.24

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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.