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Finding the Fourth Proportional to 52,759.77, 72,809.79 and 28,886.37

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Solution

The fourth proportional to 52,759.77, 72,809.79 and 28,886.37 is: 39,863.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,759.77 : 72,809.79 = 28,886.37 : x
  2. Step 2: Convert to fraction form
    52,759.77/72,809.79 = 28,886.37/x
  3. Step 3: Cross multiply
    52,759.77x = 72,809.79 × 28,886.37
  4. Step 4: Simplify right side
    52,759.77x = 2,103,210,533.56
  5. Step 5: Solve for x
    x = 2,103,210,533.56/52,759.77
  6. Step 6: Final answer
    x = 39,863.91

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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.