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Finding the Fourth Proportional to 2,386.56, 3,575.21 and 1,836.07

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Solution

The fourth proportional to 2,386.56, 3,575.21 and 1,836.07 is: 2,750.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.56 : 3,575.21 = 1,836.07 : x
  2. Step 2: Convert to fraction form
    2,386.56/3,575.21 = 1,836.07/x
  3. Step 3: Cross multiply
    2,386.56x = 3,575.21 × 1,836.07
  4. Step 4: Simplify right side
    2,386.56x = 6,564,317.71
  5. Step 5: Solve for x
    x = 6,564,317.71/2,386.56
  6. Step 6: Final answer
    x = 2,750.53

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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.