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Finding the Fourth Proportional to 19,143.24, 28,605.04 and 14,615.24

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Solution

The fourth proportional to 19,143.24, 28,605.04 and 14,615.24 is: 21,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.24 : 28,605.04 = 14,615.24 : x
  2. Step 2: Convert to fraction form
    19,143.24/28,605.04 = 14,615.24/x
  3. Step 3: Cross multiply
    19,143.24x = 28,605.04 × 14,615.24
  4. Step 4: Simplify right side
    19,143.24x = 418,069,488.27
  5. Step 5: Solve for x
    x = 418,069,488.27/19,143.24
  6. Step 6: Final answer
    x = 21,839.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.