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Finding the Fourth Proportional to 70,541.06, 97,342.78 and 38,707.44

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Solution

The fourth proportional to 70,541.06, 97,342.78 and 38,707.44 is: 53,414.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,541.06 : 97,342.78 = 38,707.44 : x
  2. Step 2: Convert to fraction form
    70,541.06/97,342.78 = 38,707.44/x
  3. Step 3: Cross multiply
    70,541.06x = 97,342.78 × 38,707.44
  4. Step 4: Simplify right side
    70,541.06x = 3,767,889,816.28
  5. Step 5: Solve for x
    x = 3,767,889,816.28/70,541.06
  6. Step 6: Final answer
    x = 53,414.14

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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.