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Finding the Fourth Proportional to 52,164.72, 71,986.62 and 28,290.93

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Solution

The fourth proportional to 52,164.72, 71,986.62 and 28,290.93 is: 39,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,164.72 : 71,986.62 = 28,290.93 : x
  2. Step 2: Convert to fraction form
    52,164.72/71,986.62 = 28,290.93/x
  3. Step 3: Cross multiply
    52,164.72x = 71,986.62 × 28,290.93
  4. Step 4: Simplify right side
    52,164.72x = 2,036,568,427.36
  5. Step 5: Solve for x
    x = 2,036,568,427.36/52,164.72
  6. Step 6: Final answer
    x = 39,041.11

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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.