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Finding the Fourth Proportional to 21,373.28, 32,052 and 7,330.40

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Solution

The fourth proportional to 21,373.28, 32,052 and 7,330.40 is: 10,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.28 : 32,052 = 7,330.40 : x
  2. Step 2: Convert to fraction form
    21,373.28/32,052 = 7,330.40/x
  3. Step 3: Cross multiply
    21,373.28x = 32,052 × 7,330.40
  4. Step 4: Simplify right side
    21,373.28x = 234,953,980.80
  5. Step 5: Solve for x
    x = 234,953,980.80/21,373.28
  6. Step 6: Final answer
    x = 10,992.88

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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.