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Finding the Fourth Proportional to 7,225.80, 9,969.27 and 4,869.30

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Solution

The fourth proportional to 7,225.80, 9,969.27 and 4,869.30 is: 6,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.80 : 9,969.27 = 4,869.30 : x
  2. Step 2: Convert to fraction form
    7,225.80/9,969.27 = 4,869.30/x
  3. Step 3: Cross multiply
    7,225.80x = 9,969.27 × 4,869.30
  4. Step 4: Simplify right side
    7,225.80x = 48,543,366.41
  5. Step 5: Solve for x
    x = 48,543,366.41/7,225.80
  6. Step 6: Final answer
    x = 6,718.06

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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.