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Finding the Fourth Proportional to 3,698.49, 5,547.70 and 925.14

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Solution

The fourth proportional to 3,698.49, 5,547.70 and 925.14 is: 1,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.49 : 5,547.70 = 925.14 : x
  2. Step 2: Convert to fraction form
    3,698.49/5,547.70 = 925.14/x
  3. Step 3: Cross multiply
    3,698.49x = 5,547.70 × 925.14
  4. Step 4: Simplify right side
    3,698.49x = 5,132,396.87
  5. Step 5: Solve for x
    x = 5,132,396.87/3,698.49
  6. Step 6: Final answer
    x = 1,387.70

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1.5x scale

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.