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Finding the Fourth Proportional to 21,901.56, 32,852.34 and 9,425.40

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Solution

The fourth proportional to 21,901.56, 32,852.34 and 9,425.40 is: 14,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.56 : 32,852.34 = 9,425.40 : x
  2. Step 2: Convert to fraction form
    21,901.56/32,852.34 = 9,425.40/x
  3. Step 3: Cross multiply
    21,901.56x = 32,852.34 × 9,425.40
  4. Step 4: Simplify right side
    21,901.56x = 309,646,445.44
  5. Step 5: Solve for x
    x = 309,646,445.44/21,901.56
  6. Step 6: Final answer
    x = 14,138.10

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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.