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Finding the Fourth Proportional to 5,672.76, 8,510.76 and 4,114.32

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Solution

The fourth proportional to 5,672.76, 8,510.76 and 4,114.32 is: 6,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.76 : 8,510.76 = 4,114.32 : x
  2. Step 2: Convert to fraction form
    5,672.76/8,510.76 = 4,114.32/x
  3. Step 3: Cross multiply
    5,672.76x = 8,510.76 × 4,114.32
  4. Step 4: Simplify right side
    5,672.76x = 35,015,990.08
  5. Step 5: Solve for x
    x = 35,015,990.08/5,672.76
  6. Step 6: Final answer
    x = 6,172.65

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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.