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Finding the Fourth Proportional to 26,785.60, 40,113.60 and 25,619.20

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Solution

The fourth proportional to 26,785.60, 40,113.60 and 25,619.20 is: 38,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,785.60 : 40,113.60 = 25,619.20 : x
  2. Step 2: Convert to fraction form
    26,785.60/40,113.60 = 25,619.20/x
  3. Step 3: Cross multiply
    26,785.60x = 40,113.60 × 25,619.20
  4. Step 4: Simplify right side
    26,785.60x = 1,027,678,341.12
  5. Step 5: Solve for x
    x = 1,027,678,341.12/26,785.60
  6. Step 6: Final answer
    x = 38,366.82

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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.