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Finding the Fourth Proportional to 2,547.93, 3,821.91 and 699.06

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Solution

The fourth proportional to 2,547.93, 3,821.91 and 699.06 is: 1,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.93 : 3,821.91 = 699.06 : x
  2. Step 2: Convert to fraction form
    2,547.93/3,821.91 = 699.06/x
  3. Step 3: Cross multiply
    2,547.93x = 3,821.91 × 699.06
  4. Step 4: Simplify right side
    2,547.93x = 2,671,756.12
  5. Step 5: Solve for x
    x = 2,671,756.12/2,547.93
  6. Step 6: Final answer
    x = 1,048.60

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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.