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Finding the Fourth Proportional to 19,245.78, 26,541.15 and 12,773.97

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Solution

The fourth proportional to 19,245.78, 26,541.15 and 12,773.97 is: 17,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.78 : 26,541.15 = 12,773.97 : x
  2. Step 2: Convert to fraction form
    19,245.78/26,541.15 = 12,773.97/x
  3. Step 3: Cross multiply
    19,245.78x = 26,541.15 × 12,773.97
  4. Step 4: Simplify right side
    19,245.78x = 339,035,853.87
  5. Step 5: Solve for x
    x = 339,035,853.87/19,245.78
  6. Step 6: Final answer
    x = 17,616.11

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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.