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Finding the Fourth Proportional to 48,445.75, 72,679.56 and 17,281

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Solution

The fourth proportional to 48,445.75, 72,679.56 and 17,281 is: 25,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,445.75 : 72,679.56 = 17,281 : x
  2. Step 2: Convert to fraction form
    48,445.75/72,679.56 = 17,281/x
  3. Step 3: Cross multiply
    48,445.75x = 72,679.56 × 17,281
  4. Step 4: Simplify right side
    48,445.75x = 1,255,975,476.36
  5. Step 5: Solve for x
    x = 1,255,975,476.36/48,445.75
  6. Step 6: Final answer
    x = 25,925.40

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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.