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Finding the Fourth Proportional to 13,916.88, 19,208.88 and 9,448.11

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Solution

The fourth proportional to 13,916.88, 19,208.88 and 9,448.11 is: 13,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.88 : 19,208.88 = 9,448.11 : x
  2. Step 2: Convert to fraction form
    13,916.88/19,208.88 = 9,448.11/x
  3. Step 3: Cross multiply
    13,916.88x = 19,208.88 × 9,448.11
  4. Step 4: Simplify right side
    13,916.88x = 181,487,611.22
  5. Step 5: Solve for x
    x = 181,487,611.22/13,916.88
  6. Step 6: Final answer
    x = 13,040.83

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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.