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Finding the Fourth Proportional to 9,707.96, 14,561.96 and 2,687.99

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Solution

The fourth proportional to 9,707.96, 14,561.96 and 2,687.99 is: 4,031.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,707.96 : 14,561.96 = 2,687.99 : x
  2. Step 2: Convert to fraction form
    9,707.96/14,561.96 = 2,687.99/x
  3. Step 3: Cross multiply
    9,707.96x = 14,561.96 × 2,687.99
  4. Step 4: Simplify right side
    9,707.96x = 39,142,389.42
  5. Step 5: Solve for x
    x = 39,142,389.42/9,707.96
  6. Step 6: Final answer
    x = 4,031.99

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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.