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Finding the Fourth Proportional to 4,699.26, 7,048.13 and 1,411.79

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Solution

The fourth proportional to 4,699.26, 7,048.13 and 1,411.79 is: 2,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.26 : 7,048.13 = 1,411.79 : x
  2. Step 2: Convert to fraction form
    4,699.26/7,048.13 = 1,411.79/x
  3. Step 3: Cross multiply
    4,699.26x = 7,048.13 × 1,411.79
  4. Step 4: Simplify right side
    4,699.26x = 9,950,437.15
  5. Step 5: Solve for x
    x = 9,950,437.15/4,699.26
  6. Step 6: Final answer
    x = 2,117.45

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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.