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Finding the Fourth Proportional to 19,697.84, 29,548.59 and 7,848.75

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Solution

The fourth proportional to 19,697.84, 29,548.59 and 7,848.75 is: 11,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.84 : 29,548.59 = 7,848.75 : x
  2. Step 2: Convert to fraction form
    19,697.84/29,548.59 = 7,848.75/x
  3. Step 3: Cross multiply
    19,697.84x = 29,548.59 × 7,848.75
  4. Step 4: Simplify right side
    19,697.84x = 231,919,495.76
  5. Step 5: Solve for x
    x = 231,919,495.76/19,697.84
  6. Step 6: Final answer
    x = 11,773.85

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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.