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Finding the Fourth Proportional to 26,556.48, 39,841.65 and 9,916.65

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Solution

The fourth proportional to 26,556.48, 39,841.65 and 9,916.65 is: 14,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,556.48 : 39,841.65 = 9,916.65 : x
  2. Step 2: Convert to fraction form
    26,556.48/39,841.65 = 9,916.65/x
  3. Step 3: Cross multiply
    26,556.48x = 39,841.65 × 9,916.65
  4. Step 4: Simplify right side
    26,556.48x = 395,095,698.47
  5. Step 5: Solve for x
    x = 395,095,698.47/26,556.48
  6. Step 6: Final answer
    x = 14,877.56

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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.