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Finding the Fourth Proportional to 12,357.95, 18,447.03 and 11,444.27

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Solution

The fourth proportional to 12,357.95, 18,447.03 and 11,444.27 is: 17,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.95 : 18,447.03 = 11,444.27 : x
  2. Step 2: Convert to fraction form
    12,357.95/18,447.03 = 11,444.27/x
  3. Step 3: Cross multiply
    12,357.95x = 18,447.03 × 11,444.27
  4. Step 4: Simplify right side
    12,357.95x = 211,112,699.78
  5. Step 5: Solve for x
    x = 211,112,699.78/12,357.95
  6. Step 6: Final answer
    x = 17,083.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.