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Finding the Fourth Proportional to 47,388.76, 65,347.50 and 40,696.54

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Solution

The fourth proportional to 47,388.76, 65,347.50 and 40,696.54 is: 56,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,388.76 : 65,347.50 = 40,696.54 : x
  2. Step 2: Convert to fraction form
    47,388.76/65,347.50 = 40,696.54/x
  3. Step 3: Cross multiply
    47,388.76x = 65,347.50 × 40,696.54
  4. Step 4: Simplify right side
    47,388.76x = 2,659,417,147.65
  5. Step 5: Solve for x
    x = 2,659,417,147.65/47,388.76
  6. Step 6: Final answer
    x = 56,119.15

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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.