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Finding the Fourth Proportional to 5,386.53, 7,424.94 and 4,934.55

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Solution

The fourth proportional to 5,386.53, 7,424.94 and 4,934.55 is: 6,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.53 : 7,424.94 = 4,934.55 : x
  2. Step 2: Convert to fraction form
    5,386.53/7,424.94 = 4,934.55/x
  3. Step 3: Cross multiply
    5,386.53x = 7,424.94 × 4,934.55
  4. Step 4: Simplify right side
    5,386.53x = 36,638,737.68
  5. Step 5: Solve for x
    x = 36,638,737.68/5,386.53
  6. Step 6: Final answer
    x = 6,801.92

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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.