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Finding the Fourth Proportional to 19,602.74, 29,391.30 and 8,352.20

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Solution

The fourth proportional to 19,602.74, 29,391.30 and 8,352.20 is: 12,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.74 : 29,391.30 = 8,352.20 : x
  2. Step 2: Convert to fraction form
    19,602.74/29,391.30 = 8,352.20/x
  3. Step 3: Cross multiply
    19,602.74x = 29,391.30 × 8,352.20
  4. Step 4: Simplify right side
    19,602.74x = 245,482,015.86
  5. Step 5: Solve for x
    x = 245,482,015.86/19,602.74
  6. Step 6: Final answer
    x = 12,522.84

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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.