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Finding the Fourth Proportional to 5,357.70, 7,393.55 and 2,999.93

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Solution

The fourth proportional to 5,357.70, 7,393.55 and 2,999.93 is: 4,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.70 : 7,393.55 = 2,999.93 : x
  2. Step 2: Convert to fraction form
    5,357.70/7,393.55 = 2,999.93/x
  3. Step 3: Cross multiply
    5,357.70x = 7,393.55 × 2,999.93
  4. Step 4: Simplify right side
    5,357.70x = 22,180,080.48
  5. Step 5: Solve for x
    x = 22,180,080.48/5,357.70
  6. Step 6: Final answer
    x = 4,139.85

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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.