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Finding the Fourth Proportional to 14,079.08, 21,108.69 and 7,054.06

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Solution

The fourth proportional to 14,079.08, 21,108.69 and 7,054.06 is: 10,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.08 : 21,108.69 = 7,054.06 : x
  2. Step 2: Convert to fraction form
    14,079.08/21,108.69 = 7,054.06/x
  3. Step 3: Cross multiply
    14,079.08x = 21,108.69 × 7,054.06
  4. Step 4: Simplify right side
    14,079.08x = 148,902,002.04
  5. Step 5: Solve for x
    x = 148,902,002.04/14,079.08
  6. Step 6: Final answer
    x = 10,576.12

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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.