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Finding the Fourth Proportional to 19,496.88, 29,262.06 and 7,818.12

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Solution

The fourth proportional to 19,496.88, 29,262.06 and 7,818.12 is: 11,733.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,496.88 : 29,262.06 = 7,818.12 : x
  2. Step 2: Convert to fraction form
    19,496.88/29,262.06 = 7,818.12/x
  3. Step 3: Cross multiply
    19,496.88x = 29,262.06 × 7,818.12
  4. Step 4: Simplify right side
    19,496.88x = 228,774,296.53
  5. Step 5: Solve for x
    x = 228,774,296.53/19,496.88
  6. Step 6: Final answer
    x = 11,733.89

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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.