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Finding the Fourth Proportional to 68,706.66, 94,819.14 and 38,501.76

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Solution

The fourth proportional to 68,706.66, 94,819.14 and 38,501.76 is: 53,134.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.66 : 94,819.14 = 38,501.76 : x
  2. Step 2: Convert to fraction form
    68,706.66/94,819.14 = 38,501.76/x
  3. Step 3: Cross multiply
    68,706.66x = 94,819.14 × 38,501.76
  4. Step 4: Simplify right side
    68,706.66x = 3,650,703,771.69
  5. Step 5: Solve for x
    x = 3,650,703,771.69/68,706.66
  6. Step 6: Final answer
    x = 53,134.64

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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.