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Finding the Fourth Proportional to 15,893.42, 21,933.81 and 9,607.82

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Solution

The fourth proportional to 15,893.42, 21,933.81 and 9,607.82 is: 13,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.42 : 21,933.81 = 9,607.82 : x
  2. Step 2: Convert to fraction form
    15,893.42/21,933.81 = 9,607.82/x
  3. Step 3: Cross multiply
    15,893.42x = 21,933.81 × 9,607.82
  4. Step 4: Simplify right side
    15,893.42x = 210,735,988.73
  5. Step 5: Solve for x
    x = 210,735,988.73/15,893.42
  6. Step 6: Final answer
    x = 13,259.33

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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.