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Finding the Fourth Proportional to 45,455.50, 62,728.86 and 25,583.50

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Solution

The fourth proportional to 45,455.50, 62,728.86 and 25,583.50 is: 35,305.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,455.50 : 62,728.86 = 25,583.50 : x
  2. Step 2: Convert to fraction form
    45,455.50/62,728.86 = 25,583.50/x
  3. Step 3: Cross multiply
    45,455.50x = 62,728.86 × 25,583.50
  4. Step 4: Simplify right side
    45,455.50x = 1,604,823,789.81
  5. Step 5: Solve for x
    x = 1,604,823,789.81/45,455.50
  6. Step 6: Final answer
    x = 35,305.38

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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.