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Finding the Fourth Proportional to 13,043.52, 18,008.88 and 8,334.12

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Solution

The fourth proportional to 13,043.52, 18,008.88 and 8,334.12 is: 11,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.52 : 18,008.88 = 8,334.12 : x
  2. Step 2: Convert to fraction form
    13,043.52/18,008.88 = 8,334.12/x
  3. Step 3: Cross multiply
    13,043.52x = 18,008.88 × 8,334.12
  4. Step 4: Simplify right side
    13,043.52x = 150,088,166.99
  5. Step 5: Solve for x
    x = 150,088,166.99/13,043.52
  6. Step 6: Final answer
    x = 11,506.72

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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.