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Finding the Fourth Proportional to 8,894.82, 12,274.95 and 5,756.48

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Solution

The fourth proportional to 8,894.82, 12,274.95 and 5,756.48 is: 7,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.82 : 12,274.95 = 5,756.48 : x
  2. Step 2: Convert to fraction form
    8,894.82/12,274.95 = 5,756.48/x
  3. Step 3: Cross multiply
    8,894.82x = 12,274.95 × 5,756.48
  4. Step 4: Simplify right side
    8,894.82x = 70,660,504.18
  5. Step 5: Solve for x
    x = 70,660,504.18/8,894.82
  6. Step 6: Final answer
    x = 7,944.01

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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.