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Finding the Fourth Proportional to 64,773.12, 96,978.72 and 35,084.40

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Solution

The fourth proportional to 64,773.12, 96,978.72 and 35,084.40 is: 52,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,773.12 : 96,978.72 = 35,084.40 : x
  2. Step 2: Convert to fraction form
    64,773.12/96,978.72 = 35,084.40/x
  3. Step 3: Cross multiply
    64,773.12x = 96,978.72 × 35,084.40
  4. Step 4: Simplify right side
    64,773.12x = 3,402,440,203.97
  5. Step 5: Solve for x
    x = 3,402,440,203.97/64,773.12
  6. Step 6: Final answer
    x = 52,528.58

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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.