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Finding the Fourth Proportional to 7,224.67, 10,772.69 and 7,210.90

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Solution

The fourth proportional to 7,224.67, 10,772.69 and 7,210.90 is: 10,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.67 : 10,772.69 = 7,210.90 : x
  2. Step 2: Convert to fraction form
    7,224.67/10,772.69 = 7,210.90/x
  3. Step 3: Cross multiply
    7,224.67x = 10,772.69 × 7,210.90
  4. Step 4: Simplify right side
    7,224.67x = 77,680,790.32
  5. Step 5: Solve for x
    x = 77,680,790.32/7,224.67
  6. Step 6: Final answer
    x = 10,752.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.