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Finding the Fourth Proportional to 7,362.99, 10,161.20 and 4,219.79

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Solution

The fourth proportional to 7,362.99, 10,161.20 and 4,219.79 is: 5,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,362.99 : 10,161.20 = 4,219.79 : x
  2. Step 2: Convert to fraction form
    7,362.99/10,161.20 = 4,219.79/x
  3. Step 3: Cross multiply
    7,362.99x = 10,161.20 × 4,219.79
  4. Step 4: Simplify right side
    7,362.99x = 42,878,058.24
  5. Step 5: Solve for x
    x = 42,878,058.24/7,362.99
  6. Step 6: Final answer
    x = 5,823.46

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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.