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Finding the Fourth Proportional to 14,855.63, 22,269.49 and 4,988

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Solution

The fourth proportional to 14,855.63, 22,269.49 and 4,988 is: 7,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.63 : 22,269.49 = 4,988 : x
  2. Step 2: Convert to fraction form
    14,855.63/22,269.49 = 4,988/x
  3. Step 3: Cross multiply
    14,855.63x = 22,269.49 × 4,988
  4. Step 4: Simplify right side
    14,855.63x = 111,080,216.12
  5. Step 5: Solve for x
    x = 111,080,216.12/14,855.63
  6. Step 6: Final answer
    x = 7,477.31

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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.