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Finding the Fourth Proportional to 8,644.95, 11,929.59 and 4,868.73

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Solution

The fourth proportional to 8,644.95, 11,929.59 and 4,868.73 is: 6,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.95 : 11,929.59 = 4,868.73 : x
  2. Step 2: Convert to fraction form
    8,644.95/11,929.59 = 4,868.73/x
  3. Step 3: Cross multiply
    8,644.95x = 11,929.59 × 4,868.73
  4. Step 4: Simplify right side
    8,644.95x = 58,081,952.72
  5. Step 5: Solve for x
    x = 58,081,952.72/8,644.95
  6. Step 6: Final answer
    x = 6,718.60

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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.