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Finding the Fourth Proportional to 66,776.16, 100,203.12 and 25,226.40

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Solution

The fourth proportional to 66,776.16, 100,203.12 and 25,226.40 is: 37,854.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,776.16 : 100,203.12 = 25,226.40 : x
  2. Step 2: Convert to fraction form
    66,776.16/100,203.12 = 25,226.40/x
  3. Step 3: Cross multiply
    66,776.16x = 100,203.12 × 25,226.40
  4. Step 4: Simplify right side
    66,776.16x = 2,527,763,986.37
  5. Step 5: Solve for x
    x = 2,527,763,986.37/66,776.16
  6. Step 6: Final answer
    x = 37,854.29

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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.