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Finding the Fourth Proportional to 19,463.22, 26,865.81 and 13,502.79

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Solution

The fourth proportional to 19,463.22, 26,865.81 and 13,502.79 is: 18,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,463.22 : 26,865.81 = 13,502.79 : x
  2. Step 2: Convert to fraction form
    19,463.22/26,865.81 = 13,502.79/x
  3. Step 3: Cross multiply
    19,463.22x = 26,865.81 × 13,502.79
  4. Step 4: Simplify right side
    19,463.22x = 362,763,390.61
  5. Step 5: Solve for x
    x = 362,763,390.61/19,463.22
  6. Step 6: Final answer
    x = 18,638.41

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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.