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Finding the Fourth Proportional to 17,218.31, 25,813.22 and 6,542.45

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Solution

The fourth proportional to 17,218.31, 25,813.22 and 6,542.45 is: 9,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.31 : 25,813.22 = 6,542.45 : x
  2. Step 2: Convert to fraction form
    17,218.31/25,813.22 = 6,542.45/x
  3. Step 3: Cross multiply
    17,218.31x = 25,813.22 × 6,542.45
  4. Step 4: Simplify right side
    17,218.31x = 168,881,803.51
  5. Step 5: Solve for x
    x = 168,881,803.51/17,218.31
  6. Step 6: Final answer
    x = 9,808.27

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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.