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Finding the Fourth Proportional to 85,883.58, 118,526.22 and 47,646.90

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Solution

The fourth proportional to 85,883.58, 118,526.22 and 47,646.90 is: 65,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,883.58 : 118,526.22 = 47,646.90 : x
  2. Step 2: Convert to fraction form
    85,883.58/118,526.22 = 47,646.90/x
  3. Step 3: Cross multiply
    85,883.58x = 118,526.22 × 47,646.90
  4. Step 4: Simplify right side
    85,883.58x = 5,647,406,951.72
  5. Step 5: Solve for x
    x = 5,647,406,951.72/85,883.58
  6. Step 6: Final answer
    x = 65,756.54

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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.