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Finding the Fourth Proportional to 4,992.84, 6,888.24 and 3,315.06

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Solution

The fourth proportional to 4,992.84, 6,888.24 and 3,315.06 is: 4,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.84 : 6,888.24 = 3,315.06 : x
  2. Step 2: Convert to fraction form
    4,992.84/6,888.24 = 3,315.06/x
  3. Step 3: Cross multiply
    4,992.84x = 6,888.24 × 3,315.06
  4. Step 4: Simplify right side
    4,992.84x = 22,834,928.89
  5. Step 5: Solve for x
    x = 22,834,928.89/4,992.84
  6. Step 6: Final answer
    x = 4,573.54

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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.