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Finding the Fourth Proportional to 3,160.74, 4,741.53 and 1,697.88

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Solution

The fourth proportional to 3,160.74, 4,741.53 and 1,697.88 is: 2,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.74 : 4,741.53 = 1,697.88 : x
  2. Step 2: Convert to fraction form
    3,160.74/4,741.53 = 1,697.88/x
  3. Step 3: Cross multiply
    3,160.74x = 4,741.53 × 1,697.88
  4. Step 4: Simplify right side
    3,160.74x = 8,050,548.96
  5. Step 5: Solve for x
    x = 8,050,548.96/3,160.74
  6. Step 6: Final answer
    x = 2,547.05

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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.