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Finding the Fourth Proportional to 76,036.70, 114,055.24 and 20,632.70

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Solution

The fourth proportional to 76,036.70, 114,055.24 and 20,632.70 is: 30,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,036.70 : 114,055.24 = 20,632.70 : x
  2. Step 2: Convert to fraction form
    76,036.70/114,055.24 = 20,632.70/x
  3. Step 3: Cross multiply
    76,036.70x = 114,055.24 × 20,632.70
  4. Step 4: Simplify right side
    76,036.70x = 2,353,267,550.35
  5. Step 5: Solve for x
    x = 2,353,267,550.35/76,036.70
  6. Step 6: Final answer
    x = 30,949.10

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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.