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Finding the Fourth Proportional to 7,477.92, 10,308.46 and 4,788.84

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Solution

The fourth proportional to 7,477.92, 10,308.46 and 4,788.84 is: 6,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.92 : 10,308.46 = 4,788.84 : x
  2. Step 2: Convert to fraction form
    7,477.92/10,308.46 = 4,788.84/x
  3. Step 3: Cross multiply
    7,477.92x = 10,308.46 × 4,788.84
  4. Step 4: Simplify right side
    7,477.92x = 49,365,565.59
  5. Step 5: Solve for x
    x = 49,365,565.59/7,477.92
  6. Step 6: Final answer
    x = 6,601.51

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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.