Home / 51,193.08-70,644.60-28,530.90

Finding the Fourth Proportional to 51,193.08, 70,644.60 and 28,530.90

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Solution

The fourth proportional to 51,193.08, 70,644.60 and 28,530.90 is: 39,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,193.08 : 70,644.60 = 28,530.90 : x
  2. Step 2: Convert to fraction form
    51,193.08/70,644.60 = 28,530.90/x
  3. Step 3: Cross multiply
    51,193.08x = 70,644.60 × 28,530.90
  4. Step 4: Simplify right side
    51,193.08x = 2,015,554,018.14
  5. Step 5: Solve for x
    x = 2,015,554,018.14/51,193.08
  6. Step 6: Final answer
    x = 39,371.61

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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.