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Finding the Fourth Proportional to 14,052.15, 21,072.15 and 7,029.45

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Solution

The fourth proportional to 14,052.15, 21,072.15 and 7,029.45 is: 10,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.15 : 21,072.15 = 7,029.45 : x
  2. Step 2: Convert to fraction form
    14,052.15/21,072.15 = 7,029.45/x
  3. Step 3: Cross multiply
    14,052.15x = 21,072.15 × 7,029.45
  4. Step 4: Simplify right side
    14,052.15x = 148,125,624.82
  5. Step 5: Solve for x
    x = 148,125,624.82/14,052.15
  6. Step 6: Final answer
    x = 10,541.14

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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.