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Finding the Fourth Proportional to 25,230.60, 37,790.82 and 20,798.28

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Solution

The fourth proportional to 25,230.60, 37,790.82 and 20,798.28 is: 31,152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,230.60 : 37,790.82 = 20,798.28 : x
  2. Step 2: Convert to fraction form
    25,230.60/37,790.82 = 20,798.28/x
  3. Step 3: Cross multiply
    25,230.60x = 37,790.82 × 20,798.28
  4. Step 4: Simplify right side
    25,230.60x = 785,984,055.79
  5. Step 5: Solve for x
    x = 785,984,055.79/25,230.60
  6. Step 6: Final answer
    x = 31,152.02

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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.