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Finding the Fourth Proportional to 23,699.44, 32,700.44 and 15,209.20

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Solution

The fourth proportional to 23,699.44, 32,700.44 and 15,209.20 is: 20,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,699.44 : 32,700.44 = 15,209.20 : x
  2. Step 2: Convert to fraction form
    23,699.44/32,700.44 = 15,209.20/x
  3. Step 3: Cross multiply
    23,699.44x = 32,700.44 × 15,209.20
  4. Step 4: Simplify right side
    23,699.44x = 497,347,532.05
  5. Step 5: Solve for x
    x = 497,347,532.05/23,699.44
  6. Step 6: Final answer
    x = 20,985.62

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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.