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Finding the Fourth Proportional to 94,006.25, 129,728.25 and 50,985.57

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Solution

The fourth proportional to 94,006.25, 129,728.25 and 50,985.57 is: 70,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,006.25 : 129,728.25 = 50,985.57 : x
  2. Step 2: Convert to fraction form
    94,006.25/129,728.25 = 50,985.57/x
  3. Step 3: Cross multiply
    94,006.25x = 129,728.25 × 50,985.57
  4. Step 4: Simplify right side
    94,006.25x = 6,614,268,771.35
  5. Step 5: Solve for x
    x = 6,614,268,771.35/94,006.25
  6. Step 6: Final answer
    x = 70,359.88

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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.