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Finding the Fourth Proportional to 34,532.90, 47,655.14 and 19,628.90

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Solution

The fourth proportional to 34,532.90, 47,655.14 and 19,628.90 is: 27,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,532.90 : 47,655.14 = 19,628.90 : x
  2. Step 2: Convert to fraction form
    34,532.90/47,655.14 = 19,628.90/x
  3. Step 3: Cross multiply
    34,532.90x = 47,655.14 × 19,628.90
  4. Step 4: Simplify right side
    34,532.90x = 935,417,977.55
  5. Step 5: Solve for x
    x = 935,417,977.55/34,532.90
  6. Step 6: Final answer
    x = 27,087.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.