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Finding the Fourth Proportional to 53,124.48, 79,668.12 and 15,674.61

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Solution

The fourth proportional to 53,124.48, 79,668.12 and 15,674.61 is: 23,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,124.48 : 79,668.12 = 15,674.61 : x
  2. Step 2: Convert to fraction form
    53,124.48/79,668.12 = 15,674.61/x
  3. Step 3: Cross multiply
    53,124.48x = 79,668.12 × 15,674.61
  4. Step 4: Simplify right side
    53,124.48x = 1,248,766,710.43
  5. Step 5: Solve for x
    x = 1,248,766,710.43/53,124.48
  6. Step 6: Final answer
    x = 23,506.43

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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.