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Finding the Fourth Proportional to 19,253.40, 28,823.40 and 14,344.80

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Solution

The fourth proportional to 19,253.40, 28,823.40 and 14,344.80 is: 21,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,253.40 : 28,823.40 = 14,344.80 : x
  2. Step 2: Convert to fraction form
    19,253.40/28,823.40 = 14,344.80/x
  3. Step 3: Cross multiply
    19,253.40x = 28,823.40 × 14,344.80
  4. Step 4: Simplify right side
    19,253.40x = 413,465,908.32
  5. Step 5: Solve for x
    x = 413,465,908.32/19,253.40
  6. Step 6: Final answer
    x = 21,474.96

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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.