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Finding the Fourth Proportional to 14,353.79, 19,809.34 and 8,611.46

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Solution

The fourth proportional to 14,353.79, 19,809.34 and 8,611.46 is: 11,884.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.79 : 19,809.34 = 8,611.46 : x
  2. Step 2: Convert to fraction form
    14,353.79/19,809.34 = 8,611.46/x
  3. Step 3: Cross multiply
    14,353.79x = 19,809.34 × 8,611.46
  4. Step 4: Simplify right side
    14,353.79x = 170,587,346.64
  5. Step 5: Solve for x
    x = 170,587,346.64/14,353.79
  6. Step 6: Final answer
    x = 11,884.48

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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.