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Finding the Fourth Proportional to 57,667.60, 86,488.32 and 26,472.88

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Solution

The fourth proportional to 57,667.60, 86,488.32 and 26,472.88 is: 39,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,667.60 : 86,488.32 = 26,472.88 : x
  2. Step 2: Convert to fraction form
    57,667.60/86,488.32 = 26,472.88/x
  3. Step 3: Cross multiply
    57,667.60x = 86,488.32 × 26,472.88
  4. Step 4: Simplify right side
    57,667.60x = 2,289,594,916.76
  5. Step 5: Solve for x
    x = 2,289,594,916.76/57,667.60
  6. Step 6: Final answer
    x = 39,703.32

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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.