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Finding the Fourth Proportional to 30,994.92, 46,485.36 and 8,807.76

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Solution

The fourth proportional to 30,994.92, 46,485.36 and 8,807.76 is: 13,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,994.92 : 46,485.36 = 8,807.76 : x
  2. Step 2: Convert to fraction form
    30,994.92/46,485.36 = 8,807.76/x
  3. Step 3: Cross multiply
    30,994.92x = 46,485.36 × 8,807.76
  4. Step 4: Simplify right side
    30,994.92x = 409,431,894.39
  5. Step 5: Solve for x
    x = 409,431,894.39/30,994.92
  6. Step 6: Final answer
    x = 13,209.65

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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.