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Finding the Fourth Proportional to 5,810.09, 8,712.49 and 1,860.60

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Solution

The fourth proportional to 5,810.09, 8,712.49 and 1,860.60 is: 2,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,810.09 : 8,712.49 = 1,860.60 : x
  2. Step 2: Convert to fraction form
    5,810.09/8,712.49 = 1,860.60/x
  3. Step 3: Cross multiply
    5,810.09x = 8,712.49 × 1,860.60
  4. Step 4: Simplify right side
    5,810.09x = 16,210,458.89
  5. Step 5: Solve for x
    x = 16,210,458.89/5,810.09
  6. Step 6: Final answer
    x = 2,790.05

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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.