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Finding the Fourth Proportional to 5,595.42, 7,721.72 and 3,077.44

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Solution

The fourth proportional to 5,595.42, 7,721.72 and 3,077.44 is: 4,246.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,595.42 : 7,721.72 = 3,077.44 : x
  2. Step 2: Convert to fraction form
    5,595.42/7,721.72 = 3,077.44/x
  3. Step 3: Cross multiply
    5,595.42x = 7,721.72 × 3,077.44
  4. Step 4: Simplify right side
    5,595.42x = 23,763,130.00
  5. Step 5: Solve for x
    x = 23,763,130.00/5,595.42
  6. Step 6: Final answer
    x = 4,246.89

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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.