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Finding the Fourth Proportional to 14,235.03, 19,644.34 and 7,947.40

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Solution

The fourth proportional to 14,235.03, 19,644.34 and 7,947.40 is: 10,967.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.03 : 19,644.34 = 7,947.40 : x
  2. Step 2: Convert to fraction form
    14,235.03/19,644.34 = 7,947.40/x
  3. Step 3: Cross multiply
    14,235.03x = 19,644.34 × 7,947.40
  4. Step 4: Simplify right side
    14,235.03x = 156,121,387.98
  5. Step 5: Solve for x
    x = 156,121,387.98/14,235.03
  6. Step 6: Final answer
    x = 10,967.41

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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.