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Finding the Fourth Proportional to 4,835.79, 7,213.66 and 4,772.43

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Solution

The fourth proportional to 4,835.79, 7,213.66 and 4,772.43 is: 7,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,835.79 : 7,213.66 = 4,772.43 : x
  2. Step 2: Convert to fraction form
    4,835.79/7,213.66 = 4,772.43/x
  3. Step 3: Cross multiply
    4,835.79x = 7,213.66 × 4,772.43
  4. Step 4: Simplify right side
    4,835.79x = 34,426,675.46
  5. Step 5: Solve for x
    x = 34,426,675.46/4,835.79
  6. Step 6: Final answer
    x = 7,119.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.