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Finding the Fourth Proportional to 2,058.65, 3,088.61 and 671.99

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Solution

The fourth proportional to 2,058.65, 3,088.61 and 671.99 is: 1,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.65 : 3,088.61 = 671.99 : x
  2. Step 2: Convert to fraction form
    2,058.65/3,088.61 = 671.99/x
  3. Step 3: Cross multiply
    2,058.65x = 3,088.61 × 671.99
  4. Step 4: Simplify right side
    2,058.65x = 2,075,511.67
  5. Step 5: Solve for x
    x = 2,075,511.67/2,058.65
  6. Step 6: Final answer
    x = 1,008.19

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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.