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Finding the Fourth Proportional to 16,615.82, 24,925.08 and 4,929

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Solution

The fourth proportional to 16,615.82, 24,925.08 and 4,929 is: 7,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.82 : 24,925.08 = 4,929 : x
  2. Step 2: Convert to fraction form
    16,615.82/24,925.08 = 4,929/x
  3. Step 3: Cross multiply
    16,615.82x = 24,925.08 × 4,929
  4. Step 4: Simplify right side
    16,615.82x = 122,855,719.32
  5. Step 5: Solve for x
    x = 122,855,719.32/16,615.82
  6. Step 6: Final answer
    x = 7,393.90

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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.