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Finding the Fourth Proportional to 35,474.60, 48,951.06 and 28,398.44

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Solution

The fourth proportional to 35,474.60, 48,951.06 and 28,398.44 is: 39,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,474.60 : 48,951.06 = 28,398.44 : x
  2. Step 2: Convert to fraction form
    35,474.60/48,951.06 = 28,398.44/x
  3. Step 3: Cross multiply
    35,474.60x = 48,951.06 × 28,398.44
  4. Step 4: Simplify right side
    35,474.60x = 1,390,133,740.35
  5. Step 5: Solve for x
    x = 1,390,133,740.35/35,474.60
  6. Step 6: Final answer
    x = 39,186.73

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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.