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Finding the Fourth Proportional to 4,658.24, 6,985.20 and 1,882.72

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Solution

The fourth proportional to 4,658.24, 6,985.20 and 1,882.72 is: 2,823.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,658.24 : 6,985.20 = 1,882.72 : x
  2. Step 2: Convert to fraction form
    4,658.24/6,985.20 = 1,882.72/x
  3. Step 3: Cross multiply
    4,658.24x = 6,985.20 × 1,882.72
  4. Step 4: Simplify right side
    4,658.24x = 13,151,175.74
  5. Step 5: Solve for x
    x = 13,151,175.74/4,658.24
  6. Step 6: Final answer
    x = 2,823.21

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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.