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Finding the Fourth Proportional to 19,703.61, 27,190.46 and 10,751.11

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Solution

The fourth proportional to 19,703.61, 27,190.46 and 10,751.11 is: 14,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.61 : 27,190.46 = 10,751.11 : x
  2. Step 2: Convert to fraction form
    19,703.61/27,190.46 = 10,751.11/x
  3. Step 3: Cross multiply
    19,703.61x = 27,190.46 × 10,751.11
  4. Step 4: Simplify right side
    19,703.61x = 292,327,626.41
  5. Step 5: Solve for x
    x = 292,327,626.41/19,703.61
  6. Step 6: Final answer
    x = 14,836.25

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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.