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Finding the Fourth Proportional to 75,293.89, 103,975.85 and 48,483.09

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Solution

The fourth proportional to 75,293.89, 103,975.85 and 48,483.09 is: 66,951.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,293.89 : 103,975.85 = 48,483.09 : x
  2. Step 2: Convert to fraction form
    75,293.89/103,975.85 = 48,483.09/x
  3. Step 3: Cross multiply
    75,293.89x = 103,975.85 × 48,483.09
  4. Step 4: Simplify right side
    75,293.89x = 5,041,070,614.58
  5. Step 5: Solve for x
    x = 5,041,070,614.58/75,293.89
  6. Step 6: Final answer
    x = 66,951.92

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1.5x scale

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.