Home / 76,020.27-114,012.71-28,640.11

Finding the Fourth Proportional to 76,020.27, 114,012.71 and 28,640.11

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Solution

The fourth proportional to 76,020.27, 114,012.71 and 28,640.11 is: 42,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,020.27 : 114,012.71 = 28,640.11 : x
  2. Step 2: Convert to fraction form
    76,020.27/114,012.71 = 28,640.11/x
  3. Step 3: Cross multiply
    76,020.27x = 114,012.71 × 28,640.11
  4. Step 4: Simplify right side
    76,020.27x = 3,265,336,289.18
  5. Step 5: Solve for x
    x = 3,265,336,289.18/76,020.27
  6. Step 6: Final answer
    x = 42,953.49

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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.