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Finding the Fourth Proportional to 5,373.95, 7,415.95 and 2,983.80

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Solution

The fourth proportional to 5,373.95, 7,415.95 and 2,983.80 is: 4,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,373.95 : 7,415.95 = 2,983.80 : x
  2. Step 2: Convert to fraction form
    5,373.95/7,415.95 = 2,983.80/x
  3. Step 3: Cross multiply
    5,373.95x = 7,415.95 × 2,983.80
  4. Step 4: Simplify right side
    5,373.95x = 22,127,714.62
  5. Step 5: Solve for x
    x = 22,127,714.62/5,373.95
  6. Step 6: Final answer
    x = 4,117.59

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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.