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Finding the Fourth Proportional to 5,698.61, 8,542.71 and 1,998.82

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Solution

The fourth proportional to 5,698.61, 8,542.71 and 1,998.82 is: 2,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698.61 : 8,542.71 = 1,998.82 : x
  2. Step 2: Convert to fraction form
    5,698.61/8,542.71 = 1,998.82/x
  3. Step 3: Cross multiply
    5,698.61x = 8,542.71 × 1,998.82
  4. Step 4: Simplify right side
    5,698.61x = 17,075,318.25
  5. Step 5: Solve for x
    x = 17,075,318.25/5,698.61
  6. Step 6: Final answer
    x = 2,996.40

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.