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Finding the Fourth Proportional to 70,628.49, 97,467.03 and 38,362.95

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Solution

The fourth proportional to 70,628.49, 97,467.03 and 38,362.95 is: 52,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,628.49 : 97,467.03 = 38,362.95 : x
  2. Step 2: Convert to fraction form
    70,628.49/97,467.03 = 38,362.95/x
  3. Step 3: Cross multiply
    70,628.49x = 97,467.03 × 38,362.95
  4. Step 4: Simplify right side
    70,628.49x = 3,739,122,798.54
  5. Step 5: Solve for x
    x = 3,739,122,798.54/70,628.49
  6. Step 6: Final answer
    x = 52,940.72

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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.