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Finding the Fourth Proportional to 9,349.73, 12,901.48 and 7,939.11

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Solution

The fourth proportional to 9,349.73, 12,901.48 and 7,939.11 is: 10,955.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,349.73 : 12,901.48 = 7,939.11 : x
  2. Step 2: Convert to fraction form
    9,349.73/12,901.48 = 7,939.11/x
  3. Step 3: Cross multiply
    9,349.73x = 12,901.48 × 7,939.11
  4. Step 4: Simplify right side
    9,349.73x = 102,426,297.42
  5. Step 5: Solve for x
    x = 102,426,297.42/9,349.73
  6. Step 6: Final answer
    x = 10,955.00

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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.