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Finding the Fourth Proportional to 46,405.70, 69,608.55 and 11,345.70

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Solution

The fourth proportional to 46,405.70, 69,608.55 and 11,345.70 is: 17,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,405.70 : 69,608.55 = 11,345.70 : x
  2. Step 2: Convert to fraction form
    46,405.70/69,608.55 = 11,345.70/x
  3. Step 3: Cross multiply
    46,405.70x = 69,608.55 × 11,345.70
  4. Step 4: Simplify right side
    46,405.70x = 789,757,725.74
  5. Step 5: Solve for x
    x = 789,757,725.74/46,405.70
  6. Step 6: Final answer
    x = 17,018.55

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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.