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Finding the Fourth Proportional to 6,475.92, 9,713.79 and 1,858.92

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Solution

The fourth proportional to 6,475.92, 9,713.79 and 1,858.92 is: 2,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475.92 : 9,713.79 = 1,858.92 : x
  2. Step 2: Convert to fraction form
    6,475.92/9,713.79 = 1,858.92/x
  3. Step 3: Cross multiply
    6,475.92x = 9,713.79 × 1,858.92
  4. Step 4: Simplify right side
    6,475.92x = 18,057,158.51
  5. Step 5: Solve for x
    x = 18,057,158.51/6,475.92
  6. Step 6: Final answer
    x = 2,788.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.