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Finding the Fourth Proportional to 70,774.92, 97,666.56 and 38,940.30

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Solution

The fourth proportional to 70,774.92, 97,666.56 and 38,940.30 is: 53,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,774.92 : 97,666.56 = 38,940.30 : x
  2. Step 2: Convert to fraction form
    70,774.92/97,666.56 = 38,940.30/x
  3. Step 3: Cross multiply
    70,774.92x = 97,666.56 × 38,940.30
  4. Step 4: Simplify right side
    70,774.92x = 3,803,165,146.37
  5. Step 5: Solve for x
    x = 3,803,165,146.37/70,774.92
  6. Step 6: Final answer
    x = 53,736.06

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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.