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Finding the Fourth Proportional to 69,578.48, 104,219.82 and 47,102.84

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Solution

The fourth proportional to 69,578.48, 104,219.82 and 47,102.84 is: 70,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,578.48 : 104,219.82 = 47,102.84 : x
  2. Step 2: Convert to fraction form
    69,578.48/104,219.82 = 47,102.84/x
  3. Step 3: Cross multiply
    69,578.48x = 104,219.82 × 47,102.84
  4. Step 4: Simplify right side
    69,578.48x = 4,909,049,506.29
  5. Step 5: Solve for x
    x = 4,909,049,506.29/69,578.48
  6. Step 6: Final answer
    x = 70,554.14

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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.