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Finding the Fourth Proportional to 39,656.76, 59,485.18 and 11,954.76

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Solution

The fourth proportional to 39,656.76, 59,485.18 and 11,954.76 is: 17,932.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656.76 : 59,485.18 = 11,954.76 : x
  2. Step 2: Convert to fraction form
    39,656.76/59,485.18 = 11,954.76/x
  3. Step 3: Cross multiply
    39,656.76x = 59,485.18 × 11,954.76
  4. Step 4: Simplify right side
    39,656.76x = 711,131,050.46
  5. Step 5: Solve for x
    x = 711,131,050.46/39,656.76
  6. Step 6: Final answer
    x = 17,932.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.