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Finding the Fourth Proportional to 46,340.64, 69,489 and 21,373.29

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Solution

The fourth proportional to 46,340.64, 69,489 and 21,373.29 is: 32,049.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,340.64 : 69,489 = 21,373.29 : x
  2. Step 2: Convert to fraction form
    46,340.64/69,489 = 21,373.29/x
  3. Step 3: Cross multiply
    46,340.64x = 69,489 × 21,373.29
  4. Step 4: Simplify right side
    46,340.64x = 1,485,208,548.81
  5. Step 5: Solve for x
    x = 1,485,208,548.81/46,340.64
  6. Step 6: Final answer
    x = 32,049.81

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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.