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Finding the Fourth Proportional to 46,936.40, 70,415.01 and 13,659.08

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Solution

The fourth proportional to 46,936.40, 70,415.01 and 13,659.08 is: 20,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,936.40 : 70,415.01 = 13,659.08 : x
  2. Step 2: Convert to fraction form
    46,936.40/70,415.01 = 13,659.08/x
  3. Step 3: Cross multiply
    46,936.40x = 70,415.01 × 13,659.08
  4. Step 4: Simplify right side
    46,936.40x = 961,803,902.72
  5. Step 5: Solve for x
    x = 961,803,902.72/46,936.40
  6. Step 6: Final answer
    x = 20,491.64

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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.