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Finding the Fourth Proportional to 14,387.88, 19,855.62 and 8,014.91

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Solution

The fourth proportional to 14,387.88, 19,855.62 and 8,014.91 is: 11,060.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.88 : 19,855.62 = 8,014.91 : x
  2. Step 2: Convert to fraction form
    14,387.88/19,855.62 = 8,014.91/x
  3. Step 3: Cross multiply
    14,387.88x = 19,855.62 × 8,014.91
  4. Step 4: Simplify right side
    14,387.88x = 159,140,908.02
  5. Step 5: Solve for x
    x = 159,140,908.02/14,387.88
  6. Step 6: Final answer
    x = 11,060.76

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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.