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Finding the Fourth Proportional to 8,589.57, 12,886.79 and 2,746.23

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Solution

The fourth proportional to 8,589.57, 12,886.79 and 2,746.23 is: 4,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.57 : 12,886.79 = 2,746.23 : x
  2. Step 2: Convert to fraction form
    8,589.57/12,886.79 = 2,746.23/x
  3. Step 3: Cross multiply
    8,589.57x = 12,886.79 × 2,746.23
  4. Step 4: Simplify right side
    8,589.57x = 35,390,075.57
  5. Step 5: Solve for x
    x = 35,390,075.57/8,589.57
  6. Step 6: Final answer
    x = 4,120.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.