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Finding the Fourth Proportional to 6,880.76, 10,325.25 and 2,985.17

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Solution

The fourth proportional to 6,880.76, 10,325.25 and 2,985.17 is: 4,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.76 : 10,325.25 = 2,985.17 : x
  2. Step 2: Convert to fraction form
    6,880.76/10,325.25 = 2,985.17/x
  3. Step 3: Cross multiply
    6,880.76x = 10,325.25 × 2,985.17
  4. Step 4: Simplify right side
    6,880.76x = 30,822,574.92
  5. Step 5: Solve for x
    x = 30,822,574.92/6,880.76
  6. Step 6: Final answer
    x = 4,479.53

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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.