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Finding the Fourth Proportional to 85,946.90, 118,604.88 and 47,704.22

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Solution

The fourth proportional to 85,946.90, 118,604.88 and 47,704.22 is: 65,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.90 : 118,604.88 = 47,704.22 : x
  2. Step 2: Convert to fraction form
    85,946.90/118,604.88 = 47,704.22/x
  3. Step 3: Cross multiply
    85,946.90x = 118,604.88 × 47,704.22
  4. Step 4: Simplify right side
    85,946.90x = 5,657,953,288.59
  5. Step 5: Solve for x
    x = 5,657,953,288.59/85,946.90
  6. Step 6: Final answer
    x = 65,830.80

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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.