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Finding the Fourth Proportional to 64,485.74, 96,763.90 and 25,044.40

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Solution

The fourth proportional to 64,485.74, 96,763.90 and 25,044.40 is: 37,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,485.74 : 96,763.90 = 25,044.40 : x
  2. Step 2: Convert to fraction form
    64,485.74/96,763.90 = 25,044.40/x
  3. Step 3: Cross multiply
    64,485.74x = 96,763.90 × 25,044.40
  4. Step 4: Simplify right side
    64,485.74x = 2,423,393,817.16
  5. Step 5: Solve for x
    x = 2,423,393,817.16/64,485.74
  6. Step 6: Final answer
    x = 37,580.31

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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.