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Finding the Fourth Proportional to 2,602.95, 3,900.93 and 957.96

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Solution

The fourth proportional to 2,602.95, 3,900.93 and 957.96 is: 1,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602.95 : 3,900.93 = 957.96 : x
  2. Step 2: Convert to fraction form
    2,602.95/3,900.93 = 957.96/x
  3. Step 3: Cross multiply
    2,602.95x = 3,900.93 × 957.96
  4. Step 4: Simplify right side
    2,602.95x = 3,736,934.90
  5. Step 5: Solve for x
    x = 3,736,934.90/2,602.95
  6. Step 6: Final answer
    x = 1,435.65

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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.