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Finding the Fourth Proportional to 9,883.30, 14,824.95 and 9,786.10

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Solution

The fourth proportional to 9,883.30, 14,824.95 and 9,786.10 is: 14,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.30 : 14,824.95 = 9,786.10 : x
  2. Step 2: Convert to fraction form
    9,883.30/14,824.95 = 9,786.10/x
  3. Step 3: Cross multiply
    9,883.30x = 14,824.95 × 9,786.10
  4. Step 4: Simplify right side
    9,883.30x = 145,078,443.20
  5. Step 5: Solve for x
    x = 145,078,443.20/9,883.30
  6. Step 6: Final answer
    x = 14,679.15

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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.