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Finding the Fourth Proportional to 7,899.93, 10,900.85 and 4,497.01

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Solution

The fourth proportional to 7,899.93, 10,900.85 and 4,497.01 is: 6,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.93 : 10,900.85 = 4,497.01 : x
  2. Step 2: Convert to fraction form
    7,899.93/10,900.85 = 4,497.01/x
  3. Step 3: Cross multiply
    7,899.93x = 10,900.85 × 4,497.01
  4. Step 4: Simplify right side
    7,899.93x = 49,021,181.72
  5. Step 5: Solve for x
    x = 49,021,181.72/7,899.93
  6. Step 6: Final answer
    x = 6,205.27

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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.