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Finding the Fourth Proportional to 19,603.20, 29,417.40 and 10,844.40

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Solution

The fourth proportional to 19,603.20, 29,417.40 and 10,844.40 is: 16,273.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.20 : 29,417.40 = 10,844.40 : x
  2. Step 2: Convert to fraction form
    19,603.20/29,417.40 = 10,844.40/x
  3. Step 3: Cross multiply
    19,603.20x = 29,417.40 × 10,844.40
  4. Step 4: Simplify right side
    19,603.20x = 319,014,052.56
  5. Step 5: Solve for x
    x = 319,014,052.56/19,603.20
  6. Step 6: Final answer
    x = 16,273.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.