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Finding the Fourth Proportional to 67,309.60, 92,894.16 and 40,460.80

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Solution

The fourth proportional to 67,309.60, 92,894.16 and 40,460.80 is: 55,840.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,309.60 : 92,894.16 = 40,460.80 : x
  2. Step 2: Convert to fraction form
    67,309.60/92,894.16 = 40,460.80/x
  3. Step 3: Cross multiply
    67,309.60x = 92,894.16 × 40,460.80
  4. Step 4: Simplify right side
    67,309.60x = 3,758,572,028.93
  5. Step 5: Solve for x
    x = 3,758,572,028.93/67,309.60
  6. Step 6: Final answer
    x = 55,840.06

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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.