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Finding the Fourth Proportional to 21,852.03, 32,791.02 and 20,468.30

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Solution

The fourth proportional to 21,852.03, 32,791.02 and 20,468.30 is: 30,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.03 : 32,791.02 = 20,468.30 : x
  2. Step 2: Convert to fraction form
    21,852.03/32,791.02 = 20,468.30/x
  3. Step 3: Cross multiply
    21,852.03x = 32,791.02 × 20,468.30
  4. Step 4: Simplify right side
    21,852.03x = 671,176,270.71
  5. Step 5: Solve for x
    x = 671,176,270.71/21,852.03
  6. Step 6: Final answer
    x = 30,714.60

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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.