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Finding the Fourth Proportional to 3,595.02, 5,392.52 and 1,405.30

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Solution

The fourth proportional to 3,595.02, 5,392.52 and 1,405.30 is: 2,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.02 : 5,392.52 = 1,405.30 : x
  2. Step 2: Convert to fraction form
    3,595.02/5,392.52 = 1,405.30/x
  3. Step 3: Cross multiply
    3,595.02x = 5,392.52 × 1,405.30
  4. Step 4: Simplify right side
    3,595.02x = 7,578,108.36
  5. Step 5: Solve for x
    x = 7,578,108.36/3,595.02
  6. Step 6: Final answer
    x = 2,107.95

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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.