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Finding the Fourth Proportional to 7,973.99, 10,992.70 and 5,608.79

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Solution

The fourth proportional to 7,973.99, 10,992.70 and 5,608.79 is: 7,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.99 : 10,992.70 = 5,608.79 : x
  2. Step 2: Convert to fraction form
    7,973.99/10,992.70 = 5,608.79/x
  3. Step 3: Cross multiply
    7,973.99x = 10,992.70 × 5,608.79
  4. Step 4: Simplify right side
    7,973.99x = 61,655,787.34
  5. Step 5: Solve for x
    x = 61,655,787.34/7,973.99
  6. Step 6: Final answer
    x = 7,732.11

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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.