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Finding the Fourth Proportional to 3,463.48, 4,779.64 and 1,891.58

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Solution

The fourth proportional to 3,463.48, 4,779.64 and 1,891.58 is: 2,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.48 : 4,779.64 = 1,891.58 : x
  2. Step 2: Convert to fraction form
    3,463.48/4,779.64 = 1,891.58/x
  3. Step 3: Cross multiply
    3,463.48x = 4,779.64 × 1,891.58
  4. Step 4: Simplify right side
    3,463.48x = 9,041,071.43
  5. Step 5: Solve for x
    x = 9,041,071.43/3,463.48
  6. Step 6: Final answer
    x = 2,610.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.