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Finding the Fourth Proportional to 5,712.99, 8,567.65 and 1,816.49

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Solution

The fourth proportional to 5,712.99, 8,567.65 and 1,816.49 is: 2,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.99 : 8,567.65 = 1,816.49 : x
  2. Step 2: Convert to fraction form
    5,712.99/8,567.65 = 1,816.49/x
  3. Step 3: Cross multiply
    5,712.99x = 8,567.65 × 1,816.49
  4. Step 4: Simplify right side
    5,712.99x = 15,563,003.17
  5. Step 5: Solve for x
    x = 15,563,003.17/5,712.99
  6. Step 6: Final answer
    x = 2,724.14

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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.