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Finding the Fourth Proportional to 13,229.88, 19,841.48 and 4,905.32

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Solution

The fourth proportional to 13,229.88, 19,841.48 and 4,905.32 is: 7,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.88 : 19,841.48 = 4,905.32 : x
  2. Step 2: Convert to fraction form
    13,229.88/19,841.48 = 4,905.32/x
  3. Step 3: Cross multiply
    13,229.88x = 19,841.48 × 4,905.32
  4. Step 4: Simplify right side
    13,229.88x = 97,328,808.67
  5. Step 5: Solve for x
    x = 97,328,808.67/13,229.88
  6. Step 6: Final answer
    x = 7,356.74

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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.