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Finding the Fourth Proportional to 3,698.36, 5,547.49 and 925.02

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Solution

The fourth proportional to 3,698.36, 5,547.49 and 925.02 is: 1,387.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.36 : 5,547.49 = 925.02 : x
  2. Step 2: Convert to fraction form
    3,698.36/5,547.49 = 925.02/x
  3. Step 3: Cross multiply
    3,698.36x = 5,547.49 × 925.02
  4. Step 4: Simplify right side
    3,698.36x = 5,131,536.89
  5. Step 5: Solve for x
    x = 5,131,536.89/3,698.36
  6. Step 6: Final answer
    x = 1,387.52

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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.