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Finding the Fourth Proportional to 10,720.51, 14,795.22 and 6,244.68

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Solution

The fourth proportional to 10,720.51, 14,795.22 and 6,244.68 is: 8,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.51 : 14,795.22 = 6,244.68 : x
  2. Step 2: Convert to fraction form
    10,720.51/14,795.22 = 6,244.68/x
  3. Step 3: Cross multiply
    10,720.51x = 14,795.22 × 6,244.68
  4. Step 4: Simplify right side
    10,720.51x = 92,391,414.43
  5. Step 5: Solve for x
    x = 92,391,414.43/10,720.51
  6. Step 6: Final answer
    x = 8,618.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.