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Finding the Fourth Proportional to 5,497.99, 8,246.07 and 1,987.34

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Solution

The fourth proportional to 5,497.99, 8,246.07 and 1,987.34 is: 2,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.99 : 8,246.07 = 1,987.34 : x
  2. Step 2: Convert to fraction form
    5,497.99/8,246.07 = 1,987.34/x
  3. Step 3: Cross multiply
    5,497.99x = 8,246.07 × 1,987.34
  4. Step 4: Simplify right side
    5,497.99x = 16,387,703.52
  5. Step 5: Solve for x
    x = 16,387,703.52/5,497.99
  6. Step 6: Final answer
    x = 2,980.67

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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.