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Finding the Fourth Proportional to 2,160.04, 3,240.44 and 893.58

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Solution

The fourth proportional to 2,160.04, 3,240.44 and 893.58 is: 1,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.04 : 3,240.44 = 893.58 : x
  2. Step 2: Convert to fraction form
    2,160.04/3,240.44 = 893.58/x
  3. Step 3: Cross multiply
    2,160.04x = 3,240.44 × 893.58
  4. Step 4: Simplify right side
    2,160.04x = 2,895,587.67
  5. Step 5: Solve for x
    x = 2,895,587.67/2,160.04
  6. Step 6: Final answer
    x = 1,340.53

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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.