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Finding the Fourth Proportional to 74,952.77, 103,433.55 and 40,960.52

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Solution

The fourth proportional to 74,952.77, 103,433.55 and 40,960.52 is: 56,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,952.77 : 103,433.55 = 40,960.52 : x
  2. Step 2: Convert to fraction form
    74,952.77/103,433.55 = 40,960.52/x
  3. Step 3: Cross multiply
    74,952.77x = 103,433.55 × 40,960.52
  4. Step 4: Simplify right side
    74,952.77x = 4,236,691,993.45
  5. Step 5: Solve for x
    x = 4,236,691,993.45/74,952.77
  6. Step 6: Final answer
    x = 56,524.82

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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.