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Finding the Fourth Proportional to 1,953.68, 2,695.92 and 1,510.88

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Solution

The fourth proportional to 1,953.68, 2,695.92 and 1,510.88 is: 2,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.68 : 2,695.92 = 1,510.88 : x
  2. Step 2: Convert to fraction form
    1,953.68/2,695.92 = 1,510.88/x
  3. Step 3: Cross multiply
    1,953.68x = 2,695.92 × 1,510.88
  4. Step 4: Simplify right side
    1,953.68x = 4,073,211.61
  5. Step 5: Solve for x
    x = 4,073,211.61/1,953.68
  6. Step 6: Final answer
    x = 2,084.89

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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.