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Finding the Fourth Proportional to 64,392.84, 96,583.10 and 39,420.03

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Solution

The fourth proportional to 64,392.84, 96,583.10 and 39,420.03 is: 59,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,392.84 : 96,583.10 = 39,420.03 : x
  2. Step 2: Convert to fraction form
    64,392.84/96,583.10 = 39,420.03/x
  3. Step 3: Cross multiply
    64,392.84x = 96,583.10 × 39,420.03
  4. Step 4: Simplify right side
    64,392.84x = 3,807,308,699.49
  5. Step 5: Solve for x
    x = 3,807,308,699.49/64,392.84
  6. Step 6: Final answer
    x = 59,126.27

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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.