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Finding the Fourth Proportional to 14,398.52, 19,866.44 and 8,111.02

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Solution

The fourth proportional to 14,398.52, 19,866.44 and 8,111.02 is: 11,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.52 : 19,866.44 = 8,111.02 : x
  2. Step 2: Convert to fraction form
    14,398.52/19,866.44 = 8,111.02/x
  3. Step 3: Cross multiply
    14,398.52x = 19,866.44 × 8,111.02
  4. Step 4: Simplify right side
    14,398.52x = 161,137,092.17
  5. Step 5: Solve for x
    x = 161,137,092.17/14,398.52
  6. Step 6: Final answer
    x = 11,191.23

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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.