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Finding the Fourth Proportional to 3,368.95, 5,051.54 and 2,587

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Solution

The fourth proportional to 3,368.95, 5,051.54 and 2,587 is: 3,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.95 : 5,051.54 = 2,587 : x
  2. Step 2: Convert to fraction form
    3,368.95/5,051.54 = 2,587/x
  3. Step 3: Cross multiply
    3,368.95x = 5,051.54 × 2,587
  4. Step 4: Simplify right side
    3,368.95x = 13,068,321.05
  5. Step 5: Solve for x
    x = 13,068,321.05/3,368.95
  6. Step 6: Final answer
    x = 3,879.05

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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.