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Finding the Fourth Proportional to 4,992.51, 6,892.16 and 3,870.93

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Solution

The fourth proportional to 4,992.51, 6,892.16 and 3,870.93 is: 5,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.51 : 6,892.16 = 3,870.93 : x
  2. Step 2: Convert to fraction form
    4,992.51/6,892.16 = 3,870.93/x
  3. Step 3: Cross multiply
    4,992.51x = 6,892.16 × 3,870.93
  4. Step 4: Simplify right side
    4,992.51x = 26,679,049.55
  5. Step 5: Solve for x
    x = 26,679,049.55/4,992.51
  6. Step 6: Final answer
    x = 5,343.81

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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.