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Finding the Fourth Proportional to 19,847.61, 27,389.01 and 10,895.07

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Solution

The fourth proportional to 19,847.61, 27,389.01 and 10,895.07 is: 15,034.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.61 : 27,389.01 = 10,895.07 : x
  2. Step 2: Convert to fraction form
    19,847.61/27,389.01 = 10,895.07/x
  3. Step 3: Cross multiply
    19,847.61x = 27,389.01 × 10,895.07
  4. Step 4: Simplify right side
    19,847.61x = 298,405,181.18
  5. Step 5: Solve for x
    x = 298,405,181.18/19,847.61
  6. Step 6: Final answer
    x = 15,034.82

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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.