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Finding the Fourth Proportional to 8,902.76, 12,286.01 and 4,923.95

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Solution

The fourth proportional to 8,902.76, 12,286.01 and 4,923.95 is: 6,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.76 : 12,286.01 = 4,923.95 : x
  2. Step 2: Convert to fraction form
    8,902.76/12,286.01 = 4,923.95/x
  3. Step 3: Cross multiply
    8,902.76x = 12,286.01 × 4,923.95
  4. Step 4: Simplify right side
    8,902.76x = 60,495,649.82
  5. Step 5: Solve for x
    x = 60,495,649.82/8,902.76
  6. Step 6: Final answer
    x = 6,795.16

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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.