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Finding the Fourth Proportional to 70,467.76, 97,244.82 and 38,636.58

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Solution

The fourth proportional to 70,467.76, 97,244.82 and 38,636.58 is: 53,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,467.76 : 97,244.82 = 38,636.58 : x
  2. Step 2: Convert to fraction form
    70,467.76/97,244.82 = 38,636.58/x
  3. Step 3: Cross multiply
    70,467.76x = 97,244.82 × 38,636.58
  4. Step 4: Simplify right side
    70,467.76x = 3,757,207,267.52
  5. Step 5: Solve for x
    x = 3,757,207,267.52/70,467.76
  6. Step 6: Final answer
    x = 53,318.10

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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.