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Finding the Fourth Proportional to 19,655.63, 27,141.62 and 19,020.14

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Solution

The fourth proportional to 19,655.63, 27,141.62 and 19,020.14 is: 26,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.63 : 27,141.62 = 19,020.14 : x
  2. Step 2: Convert to fraction form
    19,655.63/27,141.62 = 19,020.14/x
  3. Step 3: Cross multiply
    19,655.63x = 27,141.62 × 19,020.14
  4. Step 4: Simplify right side
    19,655.63x = 516,237,181.42
  5. Step 5: Solve for x
    x = 516,237,181.42/19,655.63
  6. Step 6: Final answer
    x = 26,264.09

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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.