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Finding the Fourth Proportional to 8,865.07, 12,233.64 and 4,886.20

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Solution

The fourth proportional to 8,865.07, 12,233.64 and 4,886.20 is: 6,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.07 : 12,233.64 = 4,886.20 : x
  2. Step 2: Convert to fraction form
    8,865.07/12,233.64 = 4,886.20/x
  3. Step 3: Cross multiply
    8,865.07x = 12,233.64 × 4,886.20
  4. Step 4: Simplify right side
    8,865.07x = 59,776,011.77
  5. Step 5: Solve for x
    x = 59,776,011.77/8,865.07
  6. Step 6: Final answer
    x = 6,742.87

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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.