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Finding the Fourth Proportional to 23,630.64, 32,610.70 and 13,020.20

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Solution

The fourth proportional to 23,630.64, 32,610.70 and 13,020.20 is: 17,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,630.64 : 32,610.70 = 13,020.20 : x
  2. Step 2: Convert to fraction form
    23,630.64/32,610.70 = 13,020.20/x
  3. Step 3: Cross multiply
    23,630.64x = 32,610.70 × 13,020.20
  4. Step 4: Simplify right side
    23,630.64x = 424,597,836.14
  5. Step 5: Solve for x
    x = 424,597,836.14/23,630.64
  6. Step 6: Final answer
    x = 17,968.11

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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.