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Finding the Fourth Proportional to 19,804.56, 27,325.48 and 10,972.56

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Solution

The fourth proportional to 19,804.56, 27,325.48 and 10,972.56 is: 15,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.56 : 27,325.48 = 10,972.56 : x
  2. Step 2: Convert to fraction form
    19,804.56/27,325.48 = 10,972.56/x
  3. Step 3: Cross multiply
    19,804.56x = 27,325.48 × 10,972.56
  4. Step 4: Simplify right side
    19,804.56x = 299,830,468.83
  5. Step 5: Solve for x
    x = 299,830,468.83/19,804.56
  6. Step 6: Final answer
    x = 15,139.47

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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.