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Finding the Fourth Proportional to 45,881.92, 68,801.76 and 18,160.96

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Solution

The fourth proportional to 45,881.92, 68,801.76 and 18,160.96 is: 27,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,881.92 : 68,801.76 = 18,160.96 : x
  2. Step 2: Convert to fraction form
    45,881.92/68,801.76 = 18,160.96/x
  3. Step 3: Cross multiply
    45,881.92x = 68,801.76 × 18,160.96
  4. Step 4: Simplify right side
    45,881.92x = 1,249,506,011.29
  5. Step 5: Solve for x
    x = 1,249,506,011.29/45,881.92
  6. Step 6: Final answer
    x = 27,233.08

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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.