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Finding the Fourth Proportional to 5,012.32, 6,916.90 and 2,774.06

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Solution

The fourth proportional to 5,012.32, 6,916.90 and 2,774.06 is: 3,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.32 : 6,916.90 = 2,774.06 : x
  2. Step 2: Convert to fraction form
    5,012.32/6,916.90 = 2,774.06/x
  3. Step 3: Cross multiply
    5,012.32x = 6,916.90 × 2,774.06
  4. Step 4: Simplify right side
    5,012.32x = 19,187,895.61
  5. Step 5: Solve for x
    x = 19,187,895.61/5,012.32
  6. Step 6: Final answer
    x = 3,828.15

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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.