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Finding the Fourth Proportional to 14,661.08, 21,987 and 4,798.76

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Solution

The fourth proportional to 14,661.08, 21,987 and 4,798.76 is: 7,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,661.08 : 21,987 = 4,798.76 : x
  2. Step 2: Convert to fraction form
    14,661.08/21,987 = 4,798.76/x
  3. Step 3: Cross multiply
    14,661.08x = 21,987 × 4,798.76
  4. Step 4: Simplify right side
    14,661.08x = 105,510,336.12
  5. Step 5: Solve for x
    x = 105,510,336.12/14,661.08
  6. Step 6: Final answer
    x = 7,196.63

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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.