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Finding the Fourth Proportional to 68,057.27, 93,926.51 and 38,988.39

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Solution

The fourth proportional to 68,057.27, 93,926.51 and 38,988.39 is: 53,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,057.27 : 93,926.51 = 38,988.39 : x
  2. Step 2: Convert to fraction form
    68,057.27/93,926.51 = 38,988.39/x
  3. Step 3: Cross multiply
    68,057.27x = 93,926.51 × 38,988.39
  4. Step 4: Simplify right side
    68,057.27x = 3,662,043,706.71
  5. Step 5: Solve for x
    x = 3,662,043,706.71/68,057.27
  6. Step 6: Final answer
    x = 53,808.27

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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.