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Finding the Fourth Proportional to 23,809, 32,841.60 and 15,322.20

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Solution

The fourth proportional to 23,809, 32,841.60 and 15,322.20 is: 21,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,809 : 32,841.60 = 15,322.20 : x
  2. Step 2: Convert to fraction form
    23,809/32,841.60 = 15,322.20/x
  3. Step 3: Cross multiply
    23,809x = 32,841.60 × 15,322.20
  4. Step 4: Simplify right side
    23,809x = 503,205,563.52
  5. Step 5: Solve for x
    x = 503,205,563.52/23,809
  6. Step 6: Final answer
    x = 21,135.10

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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.