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Finding the Fourth Proportional to 52,906.50, 79,359.75 and 15,970.50

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Solution

The fourth proportional to 52,906.50, 79,359.75 and 15,970.50 is: 23,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,906.50 : 79,359.75 = 15,970.50 : x
  2. Step 2: Convert to fraction form
    52,906.50/79,359.75 = 15,970.50/x
  3. Step 3: Cross multiply
    52,906.50x = 79,359.75 × 15,970.50
  4. Step 4: Simplify right side
    52,906.50x = 1,267,414,887.38
  5. Step 5: Solve for x
    x = 1,267,414,887.38/52,906.50
  6. Step 6: Final answer
    x = 23,955.75

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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.