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Finding the Fourth Proportional to 3,595.88, 5,391.96 and 1,646.40

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Solution

The fourth proportional to 3,595.88, 5,391.96 and 1,646.40 is: 2,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.88 : 5,391.96 = 1,646.40 : x
  2. Step 2: Convert to fraction form
    3,595.88/5,391.96 = 1,646.40/x
  3. Step 3: Cross multiply
    3,595.88x = 5,391.96 × 1,646.40
  4. Step 4: Simplify right side
    3,595.88x = 8,877,322.94
  5. Step 5: Solve for x
    x = 8,877,322.94/3,595.88
  6. Step 6: Final answer
    x = 2,468.75

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1.5x scale

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.