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Finding the Fourth Proportional to 7,199.65, 9,937.95 and 4,369.30

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Solution

The fourth proportional to 7,199.65, 9,937.95 and 4,369.30 is: 6,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.65 : 9,937.95 = 4,369.30 : x
  2. Step 2: Convert to fraction form
    7,199.65/9,937.95 = 4,369.30/x
  3. Step 3: Cross multiply
    7,199.65x = 9,937.95 × 4,369.30
  4. Step 4: Simplify right side
    7,199.65x = 43,421,884.94
  5. Step 5: Solve for x
    x = 43,421,884.94/7,199.65
  6. Step 6: Final answer
    x = 6,031.11

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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.