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Finding the Fourth Proportional to 51,893.91, 77,852.51 and 15,873.51

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Solution

The fourth proportional to 51,893.91, 77,852.51 and 15,873.51 is: 23,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,893.91 : 77,852.51 = 15,873.51 : x
  2. Step 2: Convert to fraction form
    51,893.91/77,852.51 = 15,873.51/x
  3. Step 3: Cross multiply
    51,893.91x = 77,852.51 × 15,873.51
  4. Step 4: Simplify right side
    51,893.91x = 1,235,792,516.64
  5. Step 5: Solve for x
    x = 1,235,792,516.64/51,893.91
  6. Step 6: Final answer
    x = 23,813.83

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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.