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Finding the Fourth Proportional to 46,012.91, 69,020.91 and 12,730.19

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Solution

The fourth proportional to 46,012.91, 69,020.91 and 12,730.19 is: 19,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,012.91 : 69,020.91 = 12,730.19 : x
  2. Step 2: Convert to fraction form
    46,012.91/69,020.91 = 12,730.19/x
  3. Step 3: Cross multiply
    46,012.91x = 69,020.91 × 12,730.19
  4. Step 4: Simplify right side
    46,012.91x = 878,649,341.41
  5. Step 5: Solve for x
    x = 878,649,341.41/46,012.91
  6. Step 6: Final answer
    x = 19,095.71

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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.