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Finding the Fourth Proportional to 52,133.80, 71,944.74 and 28,260.40

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Solution

The fourth proportional to 52,133.80, 71,944.74 and 28,260.40 is: 38,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,133.80 : 71,944.74 = 28,260.40 : x
  2. Step 2: Convert to fraction form
    52,133.80/71,944.74 = 28,260.40/x
  3. Step 3: Cross multiply
    52,133.80x = 71,944.74 × 28,260.40
  4. Step 4: Simplify right side
    52,133.80x = 2,033,187,130.30
  5. Step 5: Solve for x
    x = 2,033,187,130.30/52,133.80
  6. Step 6: Final answer
    x = 38,999.40

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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.