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Finding the Fourth Proportional to 7,883.36, 10,878.59 and 4,899.11

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Solution

The fourth proportional to 7,883.36, 10,878.59 and 4,899.11 is: 6,760.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.36 : 10,878.59 = 4,899.11 : x
  2. Step 2: Convert to fraction form
    7,883.36/10,878.59 = 4,899.11/x
  3. Step 3: Cross multiply
    7,883.36x = 10,878.59 × 4,899.11
  4. Step 4: Simplify right side
    7,883.36x = 53,295,384.56
  5. Step 5: Solve for x
    x = 53,295,384.56/7,883.36
  6. Step 6: Final answer
    x = 6,760.50

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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.