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Finding the Fourth Proportional to 85,889.84, 118,528.14 and 47,648.23

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Solution

The fourth proportional to 85,889.84, 118,528.14 and 47,648.23 is: 65,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,889.84 : 118,528.14 = 47,648.23 : x
  2. Step 2: Convert to fraction form
    85,889.84/118,528.14 = 47,648.23/x
  3. Step 3: Cross multiply
    85,889.84x = 118,528.14 × 47,648.23
  4. Step 4: Simplify right side
    85,889.84x = 5,647,656,076.19
  5. Step 5: Solve for x
    x = 5,647,656,076.19/85,889.84
  6. Step 6: Final answer
    x = 65,754.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.