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Finding the Fourth Proportional to 7,180.07, 9,908.73 and 4,347.98

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Solution

The fourth proportional to 7,180.07, 9,908.73 and 4,347.98 is: 6,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.07 : 9,908.73 = 4,347.98 : x
  2. Step 2: Convert to fraction form
    7,180.07/9,908.73 = 4,347.98/x
  3. Step 3: Cross multiply
    7,180.07x = 9,908.73 × 4,347.98
  4. Step 4: Simplify right side
    7,180.07x = 43,082,910.32
  5. Step 5: Solve for x
    x = 43,082,910.32/7,180.07
  6. Step 6: Final answer
    x = 6,000.35

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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.