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Finding the Fourth Proportional to 14,345.50, 19,797.80 and 8,057.88

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Solution

The fourth proportional to 14,345.50, 19,797.80 and 8,057.88 is: 11,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.50 : 19,797.80 = 8,057.88 : x
  2. Step 2: Convert to fraction form
    14,345.50/19,797.80 = 8,057.88/x
  3. Step 3: Cross multiply
    14,345.50x = 19,797.80 × 8,057.88
  4. Step 4: Simplify right side
    14,345.50x = 159,528,296.66
  5. Step 5: Solve for x
    x = 159,528,296.66/14,345.50
  6. Step 6: Final answer
    x = 11,120.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.