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Finding the Fourth Proportional to 38,563.60, 57,859.80 and 15,206.32

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Solution

The fourth proportional to 38,563.60, 57,859.80 and 15,206.32 is: 22,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,563.60 : 57,859.80 = 15,206.32 : x
  2. Step 2: Convert to fraction form
    38,563.60/57,859.80 = 15,206.32/x
  3. Step 3: Cross multiply
    38,563.60x = 57,859.80 × 15,206.32
  4. Step 4: Simplify right side
    38,563.60x = 879,834,633.94
  5. Step 5: Solve for x
    x = 879,834,633.94/38,563.60
  6. Step 6: Final answer
    x = 22,815.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.