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Finding the Fourth Proportional to 21,894.75, 32,833.62 and 7,100.10

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Solution

The fourth proportional to 21,894.75, 32,833.62 and 7,100.10 is: 10,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.75 : 32,833.62 = 7,100.10 : x
  2. Step 2: Convert to fraction form
    21,894.75/32,833.62 = 7,100.10/x
  3. Step 3: Cross multiply
    21,894.75x = 32,833.62 × 7,100.10
  4. Step 4: Simplify right side
    21,894.75x = 233,121,985.36
  5. Step 5: Solve for x
    x = 233,121,985.36/21,894.75
  6. Step 6: Final answer
    x = 10,647.39

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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.