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Finding the Fourth Proportional to 7,736.79, 10,681.43 and 7,293.99

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Solution

The fourth proportional to 7,736.79, 10,681.43 and 7,293.99 is: 10,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,736.79 : 10,681.43 = 7,293.99 : x
  2. Step 2: Convert to fraction form
    7,736.79/10,681.43 = 7,293.99/x
  3. Step 3: Cross multiply
    7,736.79x = 10,681.43 × 7,293.99
  4. Step 4: Simplify right side
    7,736.79x = 77,910,207.14
  5. Step 5: Solve for x
    x = 77,910,207.14/7,736.79
  6. Step 6: Final answer
    x = 10,070.09

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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.