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Finding the Fourth Proportional to 52,333.70, 72,220.55 and 28,460.30

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Solution

The fourth proportional to 52,333.70, 72,220.55 and 28,460.30 is: 39,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,333.70 : 72,220.55 = 28,460.30 : x
  2. Step 2: Convert to fraction form
    52,333.70/72,220.55 = 28,460.30/x
  3. Step 3: Cross multiply
    52,333.70x = 72,220.55 × 28,460.30
  4. Step 4: Simplify right side
    52,333.70x = 2,055,418,015.76
  5. Step 5: Solve for x
    x = 2,055,418,015.76/52,333.70
  6. Step 6: Final answer
    x = 39,275.23

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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.