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Finding the Fourth Proportional to 47,941.47, 71,912.07 and 12,881.07

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Solution

The fourth proportional to 47,941.47, 71,912.07 and 12,881.07 is: 19,321.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,941.47 : 71,912.07 = 12,881.07 : x
  2. Step 2: Convert to fraction form
    47,941.47/71,912.07 = 12,881.07/x
  3. Step 3: Cross multiply
    47,941.47x = 71,912.07 × 12,881.07
  4. Step 4: Simplify right side
    47,941.47x = 926,304,407.51
  5. Step 5: Solve for x
    x = 926,304,407.51/47,941.47
  6. Step 6: Final answer
    x = 19,321.57

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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.