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Finding the Fourth Proportional to 26,166.51, 39,249.78 and 7,698.51

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Solution

The fourth proportional to 26,166.51, 39,249.78 and 7,698.51 is: 11,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,166.51 : 39,249.78 = 7,698.51 : x
  2. Step 2: Convert to fraction form
    26,166.51/39,249.78 = 7,698.51/x
  3. Step 3: Cross multiply
    26,166.51x = 39,249.78 × 7,698.51
  4. Step 4: Simplify right side
    26,166.51x = 302,164,823.83
  5. Step 5: Solve for x
    x = 302,164,823.83/26,166.51
  6. Step 6: Final answer
    x = 11,547.77

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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.