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Finding the Fourth Proportional to 7,889.59, 10,888.40 and 5,896.68

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Solution

The fourth proportional to 7,889.59, 10,888.40 and 5,896.68 is: 8,137.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.59 : 10,888.40 = 5,896.68 : x
  2. Step 2: Convert to fraction form
    7,889.59/10,888.40 = 5,896.68/x
  3. Step 3: Cross multiply
    7,889.59x = 10,888.40 × 5,896.68
  4. Step 4: Simplify right side
    7,889.59x = 64,205,410.51
  5. Step 5: Solve for x
    x = 64,205,410.51/7,889.59
  6. Step 6: Final answer
    x = 8,137.99

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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.