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Finding the Fourth Proportional to 2,667.96, 4,009.50 and 1,572.84

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Solution

The fourth proportional to 2,667.96, 4,009.50 and 1,572.84 is: 2,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.96 : 4,009.50 = 1,572.84 : x
  2. Step 2: Convert to fraction form
    2,667.96/4,009.50 = 1,572.84/x
  3. Step 3: Cross multiply
    2,667.96x = 4,009.50 × 1,572.84
  4. Step 4: Simplify right side
    2,667.96x = 6,306,301.98
  5. Step 5: Solve for x
    x = 6,306,301.98/2,667.96
  6. Step 6: Final answer
    x = 2,363.72

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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.