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Finding the Fourth Proportional to 21,893.15, 32,844.53 and 7,103.57

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Solution

The fourth proportional to 21,893.15, 32,844.53 and 7,103.57 is: 10,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.15 : 32,844.53 = 7,103.57 : x
  2. Step 2: Convert to fraction form
    21,893.15/32,844.53 = 7,103.57/x
  3. Step 3: Cross multiply
    21,893.15x = 32,844.53 × 7,103.57
  4. Step 4: Simplify right side
    21,893.15x = 233,313,271.51
  5. Step 5: Solve for x
    x = 233,313,271.51/21,893.15
  6. Step 6: Final answer
    x = 10,656.91

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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.