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Finding the Fourth Proportional to 64,365.30, 96,569.82 and 40,645.26

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Solution

The fourth proportional to 64,365.30, 96,569.82 and 40,645.26 is: 60,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,365.30 : 96,569.82 = 40,645.26 : x
  2. Step 2: Convert to fraction form
    64,365.30/96,569.82 = 40,645.26/x
  3. Step 3: Cross multiply
    64,365.30x = 96,569.82 × 40,645.26
  4. Step 4: Simplify right side
    64,365.30x = 3,925,105,442.05
  5. Step 5: Solve for x
    x = 3,925,105,442.05/64,365.30
  6. Step 6: Final answer
    x = 60,981.70

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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.