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Finding the Fourth Proportional to 21,353.31, 32,023.04 and 7,118.01

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Solution

The fourth proportional to 21,353.31, 32,023.04 and 7,118.01 is: 10,674.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.31 : 32,023.04 = 7,118.01 : x
  2. Step 2: Convert to fraction form
    21,353.31/32,023.04 = 7,118.01/x
  3. Step 3: Cross multiply
    21,353.31x = 32,023.04 × 7,118.01
  4. Step 4: Simplify right side
    21,353.31x = 227,940,283.36
  5. Step 5: Solve for x
    x = 227,940,283.36/21,353.31
  6. Step 6: Final answer
    x = 10,674.70

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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.