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Finding the Fourth Proportional to 7,879.54, 10,873.79 and 4,294.53

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Solution

The fourth proportional to 7,879.54, 10,873.79 and 4,294.53 is: 5,926.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.54 : 10,873.79 = 4,294.53 : x
  2. Step 2: Convert to fraction form
    7,879.54/10,873.79 = 4,294.53/x
  3. Step 3: Cross multiply
    7,879.54x = 10,873.79 × 4,294.53
  4. Step 4: Simplify right side
    7,879.54x = 46,697,741.53
  5. Step 5: Solve for x
    x = 46,697,741.53/7,879.54
  6. Step 6: Final answer
    x = 5,926.46

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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.