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Finding the Fourth Proportional to 17,543.01, 24,210.79 and 9,991.71

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Solution

The fourth proportional to 17,543.01, 24,210.79 and 9,991.71 is: 13,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,543.01 : 24,210.79 = 9,991.71 : x
  2. Step 2: Convert to fraction form
    17,543.01/24,210.79 = 9,991.71/x
  3. Step 3: Cross multiply
    17,543.01x = 24,210.79 × 9,991.71
  4. Step 4: Simplify right side
    17,543.01x = 241,907,223.77
  5. Step 5: Solve for x
    x = 241,907,223.77/17,543.01
  6. Step 6: Final answer
    x = 13,789.38

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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.