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Finding the Fourth Proportional to 19,856.73, 27,402.74 and 10,904.28

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Solution

The fourth proportional to 19,856.73, 27,402.74 and 10,904.28 is: 15,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.73 : 27,402.74 = 10,904.28 : x
  2. Step 2: Convert to fraction form
    19,856.73/27,402.74 = 10,904.28/x
  3. Step 3: Cross multiply
    19,856.73x = 27,402.74 × 10,904.28
  4. Step 4: Simplify right side
    19,856.73x = 298,807,033.34
  5. Step 5: Solve for x
    x = 298,807,033.34/19,856.73
  6. Step 6: Final answer
    x = 15,048.15

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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.