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Finding the Fourth Proportional to 43,009.60, 64,384.80 and 37,825.60

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Solution

The fourth proportional to 43,009.60, 64,384.80 and 37,825.60 is: 56,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.60 : 64,384.80 = 37,825.60 : x
  2. Step 2: Convert to fraction form
    43,009.60/64,384.80 = 37,825.60/x
  3. Step 3: Cross multiply
    43,009.60x = 64,384.80 × 37,825.60
  4. Step 4: Simplify right side
    43,009.60x = 2,435,393,690.88
  5. Step 5: Solve for x
    x = 2,435,393,690.88/43,009.60
  6. Step 6: Final answer
    x = 56,624.42

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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.