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Finding the Fourth Proportional to 7,957.89, 11,940.48 and 3,574.17

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Solution

The fourth proportional to 7,957.89, 11,940.48 and 3,574.17 is: 5,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,957.89 : 11,940.48 = 3,574.17 : x
  2. Step 2: Convert to fraction form
    7,957.89/11,940.48 = 3,574.17/x
  3. Step 3: Cross multiply
    7,957.89x = 11,940.48 × 3,574.17
  4. Step 4: Simplify right side
    7,957.89x = 42,677,305.40
  5. Step 5: Solve for x
    x = 42,677,305.40/7,957.89
  6. Step 6: Final answer
    x = 5,362.89

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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.