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Finding the Fourth Proportional to 70,064.89, 96,689.79 and 38,234.47

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Solution

The fourth proportional to 70,064.89, 96,689.79 and 38,234.47 is: 52,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,064.89 : 96,689.79 = 38,234.47 : x
  2. Step 2: Convert to fraction form
    70,064.89/96,689.79 = 38,234.47/x
  3. Step 3: Cross multiply
    70,064.89x = 96,689.79 × 38,234.47
  4. Step 4: Simplify right side
    70,064.89x = 3,696,882,875.06
  5. Step 5: Solve for x
    x = 3,696,882,875.06/70,064.89
  6. Step 6: Final answer
    x = 52,763.70

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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.