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Finding the Fourth Proportional to 56,907.91, 85,361.80 and 16,926.73

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Solution

The fourth proportional to 56,907.91, 85,361.80 and 16,926.73 is: 25,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,907.91 : 85,361.80 = 16,926.73 : x
  2. Step 2: Convert to fraction form
    56,907.91/85,361.80 = 16,926.73/x
  3. Step 3: Cross multiply
    56,907.91x = 85,361.80 × 16,926.73
  4. Step 4: Simplify right side
    56,907.91x = 1,444,896,140.91
  5. Step 5: Solve for x
    x = 1,444,896,140.91/56,907.91
  6. Step 6: Final answer
    x = 25,390.08

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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.