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Finding the Fourth Proportional to 52,551.81, 72,522.81 and 28,679.49

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Solution

The fourth proportional to 52,551.81, 72,522.81 and 28,679.49 is: 39,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,551.81 : 72,522.81 = 28,679.49 : x
  2. Step 2: Convert to fraction form
    52,551.81/72,522.81 = 28,679.49/x
  3. Step 3: Cross multiply
    52,551.81x = 72,522.81 × 28,679.49
  4. Step 4: Simplify right side
    52,551.81x = 2,079,917,204.17
  5. Step 5: Solve for x
    x = 2,079,917,204.17/52,551.81
  6. Step 6: Final answer
    x = 39,578.41

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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.