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Finding the Fourth Proportional to 19,887.59, 29,831.09 and 5,096.39

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Solution

The fourth proportional to 19,887.59, 29,831.09 and 5,096.39 is: 7,644.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.59 : 29,831.09 = 5,096.39 : x
  2. Step 2: Convert to fraction form
    19,887.59/29,831.09 = 5,096.39/x
  3. Step 3: Cross multiply
    19,887.59x = 29,831.09 × 5,096.39
  4. Step 4: Simplify right side
    19,887.59x = 152,030,694.13
  5. Step 5: Solve for x
    x = 152,030,694.13/19,887.59
  6. Step 6: Final answer
    x = 7,644.50

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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.