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Finding the Fourth Proportional to 21,599.70, 32,408.50 and 10,349.34

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Solution

The fourth proportional to 21,599.70, 32,408.50 and 10,349.34 is: 15,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.70 : 32,408.50 = 10,349.34 : x
  2. Step 2: Convert to fraction form
    21,599.70/32,408.50 = 10,349.34/x
  3. Step 3: Cross multiply
    21,599.70x = 32,408.50 × 10,349.34
  4. Step 4: Simplify right side
    21,599.70x = 335,406,585.39
  5. Step 5: Solve for x
    x = 335,406,585.39/21,599.70
  6. Step 6: Final answer
    x = 15,528.30

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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.