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Finding the Fourth Proportional to 13,214.71, 19,822.07 and 4,449.63

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Solution

The fourth proportional to 13,214.71, 19,822.07 and 4,449.63 is: 6,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.71 : 19,822.07 = 4,449.63 : x
  2. Step 2: Convert to fraction form
    13,214.71/19,822.07 = 4,449.63/x
  3. Step 3: Cross multiply
    13,214.71x = 19,822.07 × 4,449.63
  4. Step 4: Simplify right side
    13,214.71x = 88,200,888.46
  5. Step 5: Solve for x
    x = 88,200,888.46/13,214.71
  6. Step 6: Final answer
    x = 6,674.45

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Similar ratio
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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.