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Finding the Fourth Proportional to 3,306.42, 4,955.99 and 2,916.81

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Solution

The fourth proportional to 3,306.42, 4,955.99 and 2,916.81 is: 4,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.42 : 4,955.99 = 2,916.81 : x
  2. Step 2: Convert to fraction form
    3,306.42/4,955.99 = 2,916.81/x
  3. Step 3: Cross multiply
    3,306.42x = 4,955.99 × 2,916.81
  4. Step 4: Simplify right side
    3,306.42x = 14,455,666.61
  5. Step 5: Solve for x
    x = 14,455,666.61/3,306.42
  6. Step 6: Final answer
    x = 4,372.00

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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.