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Finding the Fourth Proportional to 12,711.22, 17,541.47 and 7,045.99

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Solution

The fourth proportional to 12,711.22, 17,541.47 and 7,045.99 is: 9,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.22 : 17,541.47 = 7,045.99 : x
  2. Step 2: Convert to fraction form
    12,711.22/17,541.47 = 7,045.99/x
  3. Step 3: Cross multiply
    12,711.22x = 17,541.47 × 7,045.99
  4. Step 4: Simplify right side
    12,711.22x = 123,596,995.97
  5. Step 5: Solve for x
    x = 123,596,995.97/12,711.22
  6. Step 6: Final answer
    x = 9,723.46

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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.