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Finding the Fourth Proportional to 8,881.51, 12,256.12 and 4,902.57

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Solution

The fourth proportional to 8,881.51, 12,256.12 and 4,902.57 is: 6,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.51 : 12,256.12 = 4,902.57 : x
  2. Step 2: Convert to fraction form
    8,881.51/12,256.12 = 4,902.57/x
  3. Step 3: Cross multiply
    8,881.51x = 12,256.12 × 4,902.57
  4. Step 4: Simplify right side
    8,881.51x = 60,086,486.23
  5. Step 5: Solve for x
    x = 60,086,486.23/8,881.51
  6. Step 6: Final answer
    x = 6,765.35

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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.