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Finding the Fourth Proportional to 19,390.01, 26,760.51 and 10,892.15

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Solution

The fourth proportional to 19,390.01, 26,760.51 and 10,892.15 is: 15,032.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.01 : 26,760.51 = 10,892.15 : x
  2. Step 2: Convert to fraction form
    19,390.01/26,760.51 = 10,892.15/x
  3. Step 3: Cross multiply
    19,390.01x = 26,760.51 × 10,892.15
  4. Step 4: Simplify right side
    19,390.01x = 291,479,426.23
  5. Step 5: Solve for x
    x = 291,479,426.23/19,390.01
  6. Step 6: Final answer
    x = 15,032.46

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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.