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Finding the Fourth Proportional to 45,291.56, 67,875.56 and 17,196.57

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Solution

The fourth proportional to 45,291.56, 67,875.56 and 17,196.57 is: 25,771.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,291.56 : 67,875.56 = 17,196.57 : x
  2. Step 2: Convert to fraction form
    45,291.56/67,875.56 = 17,196.57/x
  3. Step 3: Cross multiply
    45,291.56x = 67,875.56 × 17,196.57
  4. Step 4: Simplify right side
    45,291.56x = 1,167,226,436.46
  5. Step 5: Solve for x
    x = 1,167,226,436.46/45,291.56
  6. Step 6: Final answer
    x = 25,771.39

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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.