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Finding the Fourth Proportional to 2,425.69, 3,643.15 and 1,507.66

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Solution

The fourth proportional to 2,425.69, 3,643.15 and 1,507.66 is: 2,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.69 : 3,643.15 = 1,507.66 : x
  2. Step 2: Convert to fraction form
    2,425.69/3,643.15 = 1,507.66/x
  3. Step 3: Cross multiply
    2,425.69x = 3,643.15 × 1,507.66
  4. Step 4: Simplify right side
    2,425.69x = 5,492,623.99
  5. Step 5: Solve for x
    x = 5,492,623.99/2,425.69
  6. Step 6: Final answer
    x = 2,264.36

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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.