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Finding the Fourth Proportional to 45,980.39, 63,460.45 and 38,311.49

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Solution

The fourth proportional to 45,980.39, 63,460.45 and 38,311.49 is: 52,876.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,980.39 : 63,460.45 = 38,311.49 : x
  2. Step 2: Convert to fraction form
    45,980.39/63,460.45 = 38,311.49/x
  3. Step 3: Cross multiply
    45,980.39x = 63,460.45 × 38,311.49
  4. Step 4: Simplify right side
    45,980.39x = 2,431,264,395.57
  5. Step 5: Solve for x
    x = 2,431,264,395.57/45,980.39
  6. Step 6: Final answer
    x = 52,876.12

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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.