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Finding the Fourth Proportional to 67,864.83, 93,653.54 and 39,575.99

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Solution

The fourth proportional to 67,864.83, 93,653.54 and 39,575.99 is: 54,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,864.83 : 93,653.54 = 39,575.99 : x
  2. Step 2: Convert to fraction form
    67,864.83/93,653.54 = 39,575.99/x
  3. Step 3: Cross multiply
    67,864.83x = 93,653.54 × 39,575.99
  4. Step 4: Simplify right side
    67,864.83x = 3,706,431,193.18
  5. Step 5: Solve for x
    x = 3,706,431,193.18/67,864.83
  6. Step 6: Final answer
    x = 54,614.90

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1.5x scale

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.