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Finding the Fourth Proportional to 85,883.90, 118,526.08 and 47,649.46

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Solution

The fourth proportional to 85,883.90, 118,526.08 and 47,649.46 is: 65,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,883.90 : 118,526.08 = 47,649.46 : x
  2. Step 2: Convert to fraction form
    85,883.90/118,526.08 = 47,649.46/x
  3. Step 3: Cross multiply
    85,883.90x = 118,526.08 × 47,649.46
  4. Step 4: Simplify right side
    85,883.90x = 5,647,703,707.92
  5. Step 5: Solve for x
    x = 5,647,703,707.92/85,883.90
  6. Step 6: Final answer
    x = 65,759.75

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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.