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Finding the Fourth Proportional to 64,657.32, 96,928.47 and 25,242.05

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Solution

The fourth proportional to 64,657.32, 96,928.47 and 25,242.05 is: 37,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,657.32 : 96,928.47 = 25,242.05 : x
  2. Step 2: Convert to fraction form
    64,657.32/96,928.47 = 25,242.05/x
  3. Step 3: Cross multiply
    64,657.32x = 96,928.47 × 25,242.05
  4. Step 4: Simplify right side
    64,657.32x = 2,446,672,801.52
  5. Step 5: Solve for x
    x = 2,446,672,801.52/64,657.32
  6. Step 6: Final answer
    x = 37,840.62

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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.