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Finding the Fourth Proportional to 3,561.32, 4,913.53 and 2,068.94

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Solution

The fourth proportional to 3,561.32, 4,913.53 and 2,068.94 is: 2,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.32 : 4,913.53 = 2,068.94 : x
  2. Step 2: Convert to fraction form
    3,561.32/4,913.53 = 2,068.94/x
  3. Step 3: Cross multiply
    3,561.32x = 4,913.53 × 2,068.94
  4. Step 4: Simplify right side
    3,561.32x = 10,165,805.87
  5. Step 5: Solve for x
    x = 10,165,805.87/3,561.32
  6. Step 6: Final answer
    x = 2,854.50

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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.