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Finding the Fourth Proportional to 46,592.88, 69,889.86 and 15,428.40

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Solution

The fourth proportional to 46,592.88, 69,889.86 and 15,428.40 is: 23,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,592.88 : 69,889.86 = 15,428.40 : x
  2. Step 2: Convert to fraction form
    46,592.88/69,889.86 = 15,428.40/x
  3. Step 3: Cross multiply
    46,592.88x = 69,889.86 × 15,428.40
  4. Step 4: Simplify right side
    46,592.88x = 1,078,288,716.02
  5. Step 5: Solve for x
    x = 1,078,288,716.02/46,592.88
  6. Step 6: Final answer
    x = 23,142.78

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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.