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Finding the Fourth Proportional to 70,461.66, 97,243.22 and 38,636.76

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Solution

The fourth proportional to 70,461.66, 97,243.22 and 38,636.76 is: 53,322.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,461.66 : 97,243.22 = 38,636.76 : x
  2. Step 2: Convert to fraction form
    70,461.66/97,243.22 = 38,636.76/x
  3. Step 3: Cross multiply
    70,461.66x = 97,243.22 × 38,636.76
  4. Step 4: Simplify right side
    70,461.66x = 3,757,163,049.36
  5. Step 5: Solve for x
    x = 3,757,163,049.36/70,461.66
  6. Step 6: Final answer
    x = 53,322.09

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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.