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Finding the Fourth Proportional to 7,095.75, 10,643.76 and 2,478.75

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Solution

The fourth proportional to 7,095.75, 10,643.76 and 2,478.75 is: 3,718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,095.75 : 10,643.76 = 2,478.75 : x
  2. Step 2: Convert to fraction form
    7,095.75/10,643.76 = 2,478.75/x
  3. Step 3: Cross multiply
    7,095.75x = 10,643.76 × 2,478.75
  4. Step 4: Simplify right side
    7,095.75x = 26,383,220.10
  5. Step 5: Solve for x
    x = 26,383,220.10/7,095.75
  6. Step 6: Final answer
    x = 3,718.17

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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.