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Finding the Fourth Proportional to 2,952.71, 4,430.76 and 1,491.98

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Solution

The fourth proportional to 2,952.71, 4,430.76 and 1,491.98 is: 2,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.71 : 4,430.76 = 1,491.98 : x
  2. Step 2: Convert to fraction form
    2,952.71/4,430.76 = 1,491.98/x
  3. Step 3: Cross multiply
    2,952.71x = 4,430.76 × 1,491.98
  4. Step 4: Simplify right side
    2,952.71x = 6,610,605.30
  5. Step 5: Solve for x
    x = 6,610,605.30/2,952.71
  6. Step 6: Final answer
    x = 2,238.83

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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.