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Finding the Fourth Proportional to 17,222.60, 25,809.30 and 9,811.40

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Solution

The fourth proportional to 17,222.60, 25,809.30 and 9,811.40 is: 14,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,222.60 : 25,809.30 = 9,811.40 : x
  2. Step 2: Convert to fraction form
    17,222.60/25,809.30 = 9,811.40/x
  3. Step 3: Cross multiply
    17,222.60x = 25,809.30 × 9,811.40
  4. Step 4: Simplify right side
    17,222.60x = 253,225,366.02
  5. Step 5: Solve for x
    x = 253,225,366.02/17,222.60
  6. Step 6: Final answer
    x = 14,703.09

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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.