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Finding the Fourth Proportional to 58,706.76, 81,015.32 and 33,556.80

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Solution

The fourth proportional to 58,706.76, 81,015.32 and 33,556.80 is: 46,308.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,706.76 : 81,015.32 = 33,556.80 : x
  2. Step 2: Convert to fraction form
    58,706.76/81,015.32 = 33,556.80/x
  3. Step 3: Cross multiply
    58,706.76x = 81,015.32 × 33,556.80
  4. Step 4: Simplify right side
    58,706.76x = 2,718,614,890.18
  5. Step 5: Solve for x
    x = 2,718,614,890.18/58,706.76
  6. Step 6: Final answer
    x = 46,308.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.