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Finding the Fourth Proportional to 61,716.21, 92,574 and 14,969.09

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Solution

The fourth proportional to 61,716.21, 92,574 and 14,969.09 is: 22,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,716.21 : 92,574 = 14,969.09 : x
  2. Step 2: Convert to fraction form
    61,716.21/92,574 = 14,969.09/x
  3. Step 3: Cross multiply
    61,716.21x = 92,574 × 14,969.09
  4. Step 4: Simplify right side
    61,716.21x = 1,385,748,074.79
  5. Step 5: Solve for x
    x = 1,385,748,074.79/61,716.21
  6. Step 6: Final answer
    x = 22,453.55

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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.