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Finding the Fourth Proportional to 64,829.79, 89,465.13 and 35,021.79

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Solution

The fourth proportional to 64,829.79, 89,465.13 and 35,021.79 is: 48,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,829.79 : 89,465.13 = 35,021.79 : x
  2. Step 2: Convert to fraction form
    64,829.79/89,465.13 = 35,021.79/x
  3. Step 3: Cross multiply
    64,829.79x = 89,465.13 × 35,021.79
  4. Step 4: Simplify right side
    64,829.79x = 3,133,228,995.18
  5. Step 5: Solve for x
    x = 3,133,228,995.18/64,829.79
  6. Step 6: Final answer
    x = 48,330.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.