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Finding the Fourth Proportional to 6,424.61, 8,868.35 and 4,759.46

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Solution

The fourth proportional to 6,424.61, 8,868.35 and 4,759.46 is: 6,569.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.61 : 8,868.35 = 4,759.46 : x
  2. Step 2: Convert to fraction form
    6,424.61/8,868.35 = 4,759.46/x
  3. Step 3: Cross multiply
    6,424.61x = 8,868.35 × 4,759.46
  4. Step 4: Simplify right side
    6,424.61x = 42,208,524.65
  5. Step 5: Solve for x
    x = 42,208,524.65/6,424.61
  6. Step 6: Final answer
    x = 6,569.82

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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.