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Finding the Fourth Proportional to 52,993, 79,421.34 and 40,466.92

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Solution

The fourth proportional to 52,993, 79,421.34 and 40,466.92 is: 60,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,993 : 79,421.34 = 40,466.92 : x
  2. Step 2: Convert to fraction form
    52,993/79,421.34 = 40,466.92/x
  3. Step 3: Cross multiply
    52,993x = 79,421.34 × 40,466.92
  4. Step 4: Simplify right side
    52,993x = 3,213,937,012.07
  5. Step 5: Solve for x
    x = 3,213,937,012.07/52,993
  6. Step 6: Final answer
    x = 60,648.33

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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.