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Finding the Fourth Proportional to 1,953.93, 2,916.93 and 1,885.56

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Solution

The fourth proportional to 1,953.93, 2,916.93 and 1,885.56 is: 2,814.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.93 : 2,916.93 = 1,885.56 : x
  2. Step 2: Convert to fraction form
    1,953.93/2,916.93 = 1,885.56/x
  3. Step 3: Cross multiply
    1,953.93x = 2,916.93 × 1,885.56
  4. Step 4: Simplify right side
    1,953.93x = 5,500,046.53
  5. Step 5: Solve for x
    x = 5,500,046.53/1,953.93
  6. Step 6: Final answer
    x = 2,814.86

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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.