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Finding the Fourth Proportional to 39,637, 59,455.50 and 15,013

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Solution

The fourth proportional to 39,637, 59,455.50 and 15,013 is: 22,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637 : 59,455.50 = 15,013 : x
  2. Step 2: Convert to fraction form
    39,637/59,455.50 = 15,013/x
  3. Step 3: Cross multiply
    39,637x = 59,455.50 × 15,013
  4. Step 4: Simplify right side
    39,637x = 892,605,421.50
  5. Step 5: Solve for x
    x = 892,605,421.50/39,637
  6. Step 6: Final answer
    x = 22,519.50

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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.