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Finding the Fourth Proportional to 92,958.74, 128,283.88 and 50,517.28

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Solution

The fourth proportional to 92,958.74, 128,283.88 and 50,517.28 is: 69,714.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,958.74 : 128,283.88 = 50,517.28 : x
  2. Step 2: Convert to fraction form
    92,958.74/128,283.88 = 50,517.28/x
  3. Step 3: Cross multiply
    92,958.74x = 128,283.88 × 50,517.28
  4. Step 4: Simplify right side
    92,958.74x = 6,480,552,685.45
  5. Step 5: Solve for x
    x = 6,480,552,685.45/92,958.74
  6. Step 6: Final answer
    x = 69,714.29

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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.