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Finding the Fourth Proportional to 69,668.88, 96,143.76 and 37,838.40

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Solution

The fourth proportional to 69,668.88, 96,143.76 and 37,838.40 is: 52,217.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,668.88 : 96,143.76 = 37,838.40 : x
  2. Step 2: Convert to fraction form
    69,668.88/96,143.76 = 37,838.40/x
  3. Step 3: Cross multiply
    69,668.88x = 96,143.76 × 37,838.40
  4. Step 4: Simplify right side
    69,668.88x = 3,637,926,048.38
  5. Step 5: Solve for x
    x = 3,637,926,048.38/69,668.88
  6. Step 6: Final answer
    x = 52,217.38

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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.