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Finding the Fourth Proportional to 26,615.52, 39,929.04 and 13,295.76

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Solution

The fourth proportional to 26,615.52, 39,929.04 and 13,295.76 is: 19,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.52 : 39,929.04 = 13,295.76 : x
  2. Step 2: Convert to fraction form
    26,615.52/39,929.04 = 13,295.76/x
  3. Step 3: Cross multiply
    26,615.52x = 39,929.04 × 13,295.76
  4. Step 4: Simplify right side
    26,615.52x = 530,886,932.87
  5. Step 5: Solve for x
    x = 530,886,932.87/26,615.52
  6. Step 6: Final answer
    x = 19,946.52

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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.