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Finding the Fourth Proportional to 47,043.52, 70,510.56 and 17,438.56

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Solution

The fourth proportional to 47,043.52, 70,510.56 and 17,438.56 is: 26,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,043.52 : 70,510.56 = 17,438.56 : x
  2. Step 2: Convert to fraction form
    47,043.52/70,510.56 = 17,438.56/x
  3. Step 3: Cross multiply
    47,043.52x = 70,510.56 × 17,438.56
  4. Step 4: Simplify right side
    47,043.52x = 1,229,602,631.19
  5. Step 5: Solve for x
    x = 1,229,602,631.19/47,043.52
  6. Step 6: Final answer
    x = 26,137.56

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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.