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Finding the Fourth Proportional to 26,599.96, 39,905.76 and 7,881.47

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Solution

The fourth proportional to 26,599.96, 39,905.76 and 7,881.47 is: 11,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,599.96 : 39,905.76 = 7,881.47 : x
  2. Step 2: Convert to fraction form
    26,599.96/39,905.76 = 7,881.47/x
  3. Step 3: Cross multiply
    26,599.96x = 39,905.76 × 7,881.47
  4. Step 4: Simplify right side
    26,599.96x = 314,516,029.94
  5. Step 5: Solve for x
    x = 314,516,029.94/26,599.96
  6. Step 6: Final answer
    x = 11,823.93

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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.