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Finding the Fourth Proportional to 19,622.39, 29,433.65 and 4,831.65

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Solution

The fourth proportional to 19,622.39, 29,433.65 and 4,831.65 is: 7,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,622.39 : 29,433.65 = 4,831.65 : x
  2. Step 2: Convert to fraction form
    19,622.39/29,433.65 = 4,831.65/x
  3. Step 3: Cross multiply
    19,622.39x = 29,433.65 × 4,831.65
  4. Step 4: Simplify right side
    19,622.39x = 142,213,070.86
  5. Step 5: Solve for x
    x = 142,213,070.86/19,622.39
  6. Step 6: Final answer
    x = 7,247.49

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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.