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Finding the Fourth Proportional to 7,176.16, 9,899.49 and 6,230.67

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Solution

The fourth proportional to 7,176.16, 9,899.49 and 6,230.67 is: 8,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.16 : 9,899.49 = 6,230.67 : x
  2. Step 2: Convert to fraction form
    7,176.16/9,899.49 = 6,230.67/x
  3. Step 3: Cross multiply
    7,176.16x = 9,899.49 × 6,230.67
  4. Step 4: Simplify right side
    7,176.16x = 61,680,455.36
  5. Step 5: Solve for x
    x = 61,680,455.36/7,176.16
  6. Step 6: Final answer
    x = 8,595.19

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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.