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Finding the Fourth Proportional to 60,730.94, 83,771.96 and 39,186.97

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Solution

The fourth proportional to 60,730.94, 83,771.96 and 39,186.97 is: 54,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,730.94 : 83,771.96 = 39,186.97 : x
  2. Step 2: Convert to fraction form
    60,730.94/83,771.96 = 39,186.97/x
  3. Step 3: Cross multiply
    60,730.94x = 83,771.96 × 39,186.97
  4. Step 4: Simplify right side
    60,730.94x = 3,282,768,878.00
  5. Step 5: Solve for x
    x = 3,282,768,878.00/60,730.94
  6. Step 6: Final answer
    x = 54,054.30

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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.