Home / 7,715.13-11,573.51-2,521.01

Finding the Fourth Proportional to 7,715.13, 11,573.51 and 2,521.01

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Solution

The fourth proportional to 7,715.13, 11,573.51 and 2,521.01 is: 3,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.13 : 11,573.51 = 2,521.01 : x
  2. Step 2: Convert to fraction form
    7,715.13/11,573.51 = 2,521.01/x
  3. Step 3: Cross multiply
    7,715.13x = 11,573.51 × 2,521.01
  4. Step 4: Simplify right side
    7,715.13x = 29,176,863.97
  5. Step 5: Solve for x
    x = 29,176,863.97/7,715.13
  6. Step 6: Final answer
    x = 3,781.77

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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.