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Finding the Fourth Proportional to 45,120, 62,268.54 and 25,248

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Solution

The fourth proportional to 45,120, 62,268.54 and 25,248 is: 34,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120 : 62,268.54 = 25,248 : x
  2. Step 2: Convert to fraction form
    45,120/62,268.54 = 25,248/x
  3. Step 3: Cross multiply
    45,120x = 62,268.54 × 25,248
  4. Step 4: Simplify right side
    45,120x = 1,572,156,097.92
  5. Step 5: Solve for x
    x = 1,572,156,097.92/45,120
  6. Step 6: Final answer
    x = 34,843.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.