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Finding the Fourth Proportional to 23,701.60, 32,710.80 and 15,212.80

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Solution

The fourth proportional to 23,701.60, 32,710.80 and 15,212.80 is: 20,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,701.60 : 32,710.80 = 15,212.80 : x
  2. Step 2: Convert to fraction form
    23,701.60/32,710.80 = 15,212.80/x
  3. Step 3: Cross multiply
    23,701.60x = 32,710.80 × 15,212.80
  4. Step 4: Simplify right side
    23,701.60x = 497,622,858.24
  5. Step 5: Solve for x
    x = 497,622,858.24/23,701.60
  6. Step 6: Final answer
    x = 20,995.33

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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.