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Finding the Fourth Proportional to 52,351.70, 72,246.22 and 28,478.51

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Solution

The fourth proportional to 52,351.70, 72,246.22 and 28,478.51 is: 39,300.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,351.70 : 72,246.22 = 28,478.51 : x
  2. Step 2: Convert to fraction form
    52,351.70/72,246.22 = 28,478.51/x
  3. Step 3: Cross multiply
    52,351.70x = 72,246.22 × 28,478.51
  4. Step 4: Simplify right side
    52,351.70x = 2,057,464,266.30
  5. Step 5: Solve for x
    x = 2,057,464,266.30/52,351.70
  6. Step 6: Final answer
    x = 39,300.81

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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.