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Finding the Fourth Proportional to 14,047.52, 21,069.80 and 4,686.52

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Solution

The fourth proportional to 14,047.52, 21,069.80 and 4,686.52 is: 7,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.52 : 21,069.80 = 4,686.52 : x
  2. Step 2: Convert to fraction form
    14,047.52/21,069.80 = 4,686.52/x
  3. Step 3: Cross multiply
    14,047.52x = 21,069.80 × 4,686.52
  4. Step 4: Simplify right side
    14,047.52x = 98,744,039.10
  5. Step 5: Solve for x
    x = 98,744,039.10/14,047.52
  6. Step 6: Final answer
    x = 7,029.29

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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.