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Finding the Fourth Proportional to 56,472.39, 84,686.97 and 19,022.40

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Solution

The fourth proportional to 56,472.39, 84,686.97 and 19,022.40 is: 28,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,472.39 : 84,686.97 = 19,022.40 : x
  2. Step 2: Convert to fraction form
    56,472.39/84,686.97 = 19,022.40/x
  3. Step 3: Cross multiply
    56,472.39x = 84,686.97 × 19,022.40
  4. Step 4: Simplify right side
    56,472.39x = 1,610,949,418.13
  5. Step 5: Solve for x
    x = 1,610,949,418.13/56,472.39
  6. Step 6: Final answer
    x = 28,526.32

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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.