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Finding the Fourth Proportional to 62,811, 94,259.70 and 25,875

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Solution

The fourth proportional to 62,811, 94,259.70 and 25,875 is: 38,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,811 : 94,259.70 = 25,875 : x
  2. Step 2: Convert to fraction form
    62,811/94,259.70 = 25,875/x
  3. Step 3: Cross multiply
    62,811x = 94,259.70 × 25,875
  4. Step 4: Simplify right side
    62,811x = 2,438,969,737.50
  5. Step 5: Solve for x
    x = 2,438,969,737.50/62,811
  6. Step 6: Final answer
    x = 38,830.30

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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.