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Finding the Fourth Proportional to 70,558.49, 97,366.76 and 38,724.89

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Solution

The fourth proportional to 70,558.49, 97,366.76 and 38,724.89 is: 53,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,558.49 : 97,366.76 = 38,724.89 : x
  2. Step 2: Convert to fraction form
    70,558.49/97,366.76 = 38,724.89/x
  3. Step 3: Cross multiply
    70,558.49x = 97,366.76 × 38,724.89
  4. Step 4: Simplify right side
    70,558.49x = 3,770,516,535.42
  5. Step 5: Solve for x
    x = 3,770,516,535.42/70,558.49
  6. Step 6: Final answer
    x = 53,438.17

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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.