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Finding the Fourth Proportional to 46,458.56, 69,697.74 and 13,188.80

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Solution

The fourth proportional to 46,458.56, 69,697.74 and 13,188.80 is: 19,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,458.56 : 69,697.74 = 13,188.80 : x
  2. Step 2: Convert to fraction form
    46,458.56/69,697.74 = 13,188.80/x
  3. Step 3: Cross multiply
    46,458.56x = 69,697.74 × 13,188.80
  4. Step 4: Simplify right side
    46,458.56x = 919,229,553.31
  5. Step 5: Solve for x
    x = 919,229,553.31/46,458.56
  6. Step 6: Final answer
    x = 19,786.01

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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.