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Finding the Fourth Proportional to 65,059.42, 89,747.36 and 39,573.58

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Solution

The fourth proportional to 65,059.42, 89,747.36 and 39,573.58 is: 54,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,059.42 : 89,747.36 = 39,573.58 : x
  2. Step 2: Convert to fraction form
    65,059.42/89,747.36 = 39,573.58/x
  3. Step 3: Cross multiply
    65,059.42x = 89,747.36 × 39,573.58
  4. Step 4: Simplify right side
    65,059.42x = 3,551,624,330.75
  5. Step 5: Solve for x
    x = 3,551,624,330.75/65,059.42
  6. Step 6: Final answer
    x = 54,590.47

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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.