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Finding the Fourth Proportional to 4,707.72, 7,061.64 and 2,110.12

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Solution

The fourth proportional to 4,707.72, 7,061.64 and 2,110.12 is: 3,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.72 : 7,061.64 = 2,110.12 : x
  2. Step 2: Convert to fraction form
    4,707.72/7,061.64 = 2,110.12/x
  3. Step 3: Cross multiply
    4,707.72x = 7,061.64 × 2,110.12
  4. Step 4: Simplify right side
    4,707.72x = 14,900,907.80
  5. Step 5: Solve for x
    x = 14,900,907.80/4,707.72
  6. Step 6: Final answer
    x = 3,165.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.