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Finding the Fourth Proportional to 53,064.92, 79,597.45 and 15,625.43

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Solution

The fourth proportional to 53,064.92, 79,597.45 and 15,625.43 is: 23,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,064.92 : 79,597.45 = 15,625.43 : x
  2. Step 2: Convert to fraction form
    53,064.92/79,597.45 = 15,625.43/x
  3. Step 3: Cross multiply
    53,064.92x = 79,597.45 × 15,625.43
  4. Step 4: Simplify right side
    53,064.92x = 1,243,743,946.10
  5. Step 5: Solve for x
    x = 1,243,743,946.10/53,064.92
  6. Step 6: Final answer
    x = 23,438.16

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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.