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Finding the Fourth Proportional to 64,208.84, 88,632.56 and 57,482

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Solution

The fourth proportional to 64,208.84, 88,632.56 and 57,482 is: 79,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,208.84 : 88,632.56 = 57,482 : x
  2. Step 2: Convert to fraction form
    64,208.84/88,632.56 = 57,482/x
  3. Step 3: Cross multiply
    64,208.84x = 88,632.56 × 57,482
  4. Step 4: Simplify right side
    64,208.84x = 5,094,776,813.92
  5. Step 5: Solve for x
    x = 5,094,776,813.92/64,208.84
  6. Step 6: Final answer
    x = 79,346.97

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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.