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Finding the Fourth Proportional to 19,543.72, 26,970.22 and 10,591.22

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Solution

The fourth proportional to 19,543.72, 26,970.22 and 10,591.22 is: 14,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.72 : 26,970.22 = 10,591.22 : x
  2. Step 2: Convert to fraction form
    19,543.72/26,970.22 = 10,591.22/x
  3. Step 3: Cross multiply
    19,543.72x = 26,970.22 × 10,591.22
  4. Step 4: Simplify right side
    19,543.72x = 285,647,533.47
  5. Step 5: Solve for x
    x = 285,647,533.47/19,543.72
  6. Step 6: Final answer
    x = 14,615.82

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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.