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Finding the Fourth Proportional to 8,856.99, 12,223.13 and 5,323.23

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Solution

The fourth proportional to 8,856.99, 12,223.13 and 5,323.23 is: 7,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.99 : 12,223.13 = 5,323.23 : x
  2. Step 2: Convert to fraction form
    8,856.99/12,223.13 = 5,323.23/x
  3. Step 3: Cross multiply
    8,856.99x = 12,223.13 × 5,323.23
  4. Step 4: Simplify right side
    8,856.99x = 65,066,505.69
  5. Step 5: Solve for x
    x = 65,066,505.69/8,856.99
  6. Step 6: Final answer
    x = 7,346.35

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.