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Finding the Fourth Proportional to 26,497.72, 39,721.87 and 8,955.35

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Solution

The fourth proportional to 26,497.72, 39,721.87 and 8,955.35 is: 13,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,497.72 : 39,721.87 = 8,955.35 : x
  2. Step 2: Convert to fraction form
    26,497.72/39,721.87 = 8,955.35/x
  3. Step 3: Cross multiply
    26,497.72x = 39,721.87 × 8,955.35
  4. Step 4: Simplify right side
    26,497.72x = 355,723,248.50
  5. Step 5: Solve for x
    x = 355,723,248.50/26,497.72
  6. Step 6: Final answer
    x = 13,424.67

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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.