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Finding the Fourth Proportional to 21,402.57, 32,106.02 and 7,363.74

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Solution

The fourth proportional to 21,402.57, 32,106.02 and 7,363.74 is: 11,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.57 : 32,106.02 = 7,363.74 : x
  2. Step 2: Convert to fraction form
    21,402.57/32,106.02 = 7,363.74/x
  3. Step 3: Cross multiply
    21,402.57x = 32,106.02 × 7,363.74
  4. Step 4: Simplify right side
    21,402.57x = 236,420,346.90
  5. Step 5: Solve for x
    x = 236,420,346.90/21,402.57
  6. Step 6: Final answer
    x = 11,046.35

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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.