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Finding the Fourth Proportional to 14,064.52, 21,082.76 and 7,827.36

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Solution

The fourth proportional to 14,064.52, 21,082.76 and 7,827.36 is: 11,733.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.52 : 21,082.76 = 7,827.36 : x
  2. Step 2: Convert to fraction form
    14,064.52/21,082.76 = 7,827.36/x
  3. Step 3: Cross multiply
    14,064.52x = 21,082.76 × 7,827.36
  4. Step 4: Simplify right side
    14,064.52x = 165,022,352.31
  5. Step 5: Solve for x
    x = 165,022,352.31/14,064.52
  6. Step 6: Final answer
    x = 11,733.24

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1.5x scale

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.