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Finding the Fourth Proportional to 53,019.83, 79,541.44 and 17,479.73

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Solution

The fourth proportional to 53,019.83, 79,541.44 and 17,479.73 is: 26,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,019.83 : 79,541.44 = 17,479.73 : x
  2. Step 2: Convert to fraction form
    53,019.83/79,541.44 = 17,479.73/x
  3. Step 3: Cross multiply
    53,019.83x = 79,541.44 × 17,479.73
  4. Step 4: Simplify right side
    53,019.83x = 1,390,363,050.17
  5. Step 5: Solve for x
    x = 1,390,363,050.17/53,019.83
  6. Step 6: Final answer
    x = 26,223.45

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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.