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Finding the Fourth Proportional to 17,474.55, 26,225.19 and 12,806.79

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Solution

The fourth proportional to 17,474.55, 26,225.19 and 12,806.79 is: 19,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,474.55 : 26,225.19 = 12,806.79 : x
  2. Step 2: Convert to fraction form
    17,474.55/26,225.19 = 12,806.79/x
  3. Step 3: Cross multiply
    17,474.55x = 26,225.19 × 12,806.79
  4. Step 4: Simplify right side
    17,474.55x = 335,860,501.04
  5. Step 5: Solve for x
    x = 335,860,501.04/17,474.55
  6. Step 6: Final answer
    x = 19,219.98

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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.