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Finding the Fourth Proportional to 77,596.10, 107,063.72 and 47,370.42

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Solution

The fourth proportional to 77,596.10, 107,063.72 and 47,370.42 is: 65,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,596.10 : 107,063.72 = 47,370.42 : x
  2. Step 2: Convert to fraction form
    77,596.10/107,063.72 = 47,370.42/x
  3. Step 3: Cross multiply
    77,596.10x = 107,063.72 × 47,370.42
  4. Step 4: Simplify right side
    77,596.10x = 5,071,653,383.16
  5. Step 5: Solve for x
    x = 5,071,653,383.16/77,596.10
  6. Step 6: Final answer
    x = 65,359.64

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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.