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Finding the Fourth Proportional to 30,482.08, 45,728.58 and 10,772.08

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Solution

The fourth proportional to 30,482.08, 45,728.58 and 10,772.08 is: 16,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482.08 : 45,728.58 = 10,772.08 : x
  2. Step 2: Convert to fraction form
    30,482.08/45,728.58 = 10,772.08/x
  3. Step 3: Cross multiply
    30,482.08x = 45,728.58 × 10,772.08
  4. Step 4: Simplify right side
    30,482.08x = 492,591,922.05
  5. Step 5: Solve for x
    x = 492,591,922.05/30,482.08
  6. Step 6: Final answer
    x = 16,160.05

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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.