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Finding the Fourth Proportional to 46,489.72, 69,734.58 and 18,807.16

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Solution

The fourth proportional to 46,489.72, 69,734.58 and 18,807.16 is: 28,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,489.72 : 69,734.58 = 18,807.16 : x
  2. Step 2: Convert to fraction form
    46,489.72/69,734.58 = 18,807.16/x
  3. Step 3: Cross multiply
    46,489.72x = 69,734.58 × 18,807.16
  4. Step 4: Simplify right side
    46,489.72x = 1,311,509,403.59
  5. Step 5: Solve for x
    x = 1,311,509,403.59/46,489.72
  6. Step 6: Final answer
    x = 28,210.74

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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.