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Finding the Fourth Proportional to 37,907.72, 56,857.72 and 11,612.64

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Solution

The fourth proportional to 37,907.72, 56,857.72 and 11,612.64 is: 17,417.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,907.72 : 56,857.72 = 11,612.64 : x
  2. Step 2: Convert to fraction form
    37,907.72/56,857.72 = 11,612.64/x
  3. Step 3: Cross multiply
    37,907.72x = 56,857.72 × 11,612.64
  4. Step 4: Simplify right side
    37,907.72x = 660,268,233.58
  5. Step 5: Solve for x
    x = 660,268,233.58/37,907.72
  6. Step 6: Final answer
    x = 17,417.78

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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.