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Finding the Fourth Proportional to 38,509.60, 57,764.40 and 37,926.40

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Solution

The fourth proportional to 38,509.60, 57,764.40 and 37,926.40 is: 56,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.60 : 57,764.40 = 37,926.40 : x
  2. Step 2: Convert to fraction form
    38,509.60/57,764.40 = 37,926.40/x
  3. Step 3: Cross multiply
    38,509.60x = 57,764.40 × 37,926.40
  4. Step 4: Simplify right side
    38,509.60x = 2,190,795,740.16
  5. Step 5: Solve for x
    x = 2,190,795,740.16/38,509.60
  6. Step 6: Final answer
    x = 56,889.60

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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.