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Finding the Fourth Proportional to 58,411.80, 87,611.22 and 16,858.80

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Solution

The fourth proportional to 58,411.80, 87,611.22 and 16,858.80 is: 25,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,411.80 : 87,611.22 = 16,858.80 : x
  2. Step 2: Convert to fraction form
    58,411.80/87,611.22 = 16,858.80/x
  3. Step 3: Cross multiply
    58,411.80x = 87,611.22 × 16,858.80
  4. Step 4: Simplify right side
    58,411.80x = 1,477,020,035.74
  5. Step 5: Solve for x
    x = 1,477,020,035.74/58,411.80
  6. Step 6: Final answer
    x = 25,286.33

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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.