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Finding the Fourth Proportional to 26,339.90, 39,503.92 and 7,615.77

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Solution

The fourth proportional to 26,339.90, 39,503.92 and 7,615.77 is: 11,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,339.90 : 39,503.92 = 7,615.77 : x
  2. Step 2: Convert to fraction form
    26,339.90/39,503.92 = 7,615.77/x
  3. Step 3: Cross multiply
    26,339.90x = 39,503.92 × 7,615.77
  4. Step 4: Simplify right side
    26,339.90x = 300,852,768.82
  5. Step 5: Solve for x
    x = 300,852,768.82/26,339.90
  6. Step 6: Final answer
    x = 11,421.94

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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.