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Finding the Fourth Proportional to 70,496.63, 97,286.86 and 38,665.45

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Solution

The fourth proportional to 70,496.63, 97,286.86 and 38,665.45 is: 53,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,496.63 : 97,286.86 = 38,665.45 : x
  2. Step 2: Convert to fraction form
    70,496.63/97,286.86 = 38,665.45/x
  3. Step 3: Cross multiply
    70,496.63x = 97,286.86 × 38,665.45
  4. Step 4: Simplify right side
    70,496.63x = 3,761,639,541.23
  5. Step 5: Solve for x
    x = 3,761,639,541.23/70,496.63
  6. Step 6: Final answer
    x = 53,359.14

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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.