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Finding the Fourth Proportional to 46,482.72, 69,724.08 and 18,800.16

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Solution

The fourth proportional to 46,482.72, 69,724.08 and 18,800.16 is: 28,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,482.72 : 69,724.08 = 18,800.16 : x
  2. Step 2: Convert to fraction form
    46,482.72/69,724.08 = 18,800.16/x
  3. Step 3: Cross multiply
    46,482.72x = 69,724.08 × 18,800.16
  4. Step 4: Simplify right side
    46,482.72x = 1,310,823,859.85
  5. Step 5: Solve for x
    x = 1,310,823,859.85/46,482.72
  6. Step 6: Final answer
    x = 28,200.24

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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.