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Finding the Fourth Proportional to 46,726, 70,086.44 and 19,047.28

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Solution

The fourth proportional to 46,726, 70,086.44 and 19,047.28 is: 28,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,726 : 70,086.44 = 19,047.28 : x
  2. Step 2: Convert to fraction form
    46,726/70,086.44 = 19,047.28/x
  3. Step 3: Cross multiply
    46,726x = 70,086.44 × 19,047.28
  4. Step 4: Simplify right side
    46,726x = 1,334,956,046.88
  5. Step 5: Solve for x
    x = 1,334,956,046.88/46,726
  6. Step 6: Final answer
    x = 28,569.88

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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.