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Finding the Fourth Proportional to 8,745.47, 12,068.90 and 4,766.65

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Solution

The fourth proportional to 8,745.47, 12,068.90 and 4,766.65 is: 6,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.47 : 12,068.90 = 4,766.65 : x
  2. Step 2: Convert to fraction form
    8,745.47/12,068.90 = 4,766.65/x
  3. Step 3: Cross multiply
    8,745.47x = 12,068.90 × 4,766.65
  4. Step 4: Simplify right side
    8,745.47x = 57,528,186.05
  5. Step 5: Solve for x
    x = 57,528,186.05/8,745.47
  6. Step 6: Final answer
    x = 6,578.06

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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.