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Finding the Fourth Proportional to 70,663.92, 97,521.62 and 40,458.70

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Solution

The fourth proportional to 70,663.92, 97,521.62 and 40,458.70 is: 55,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,663.92 : 97,521.62 = 40,458.70 : x
  2. Step 2: Convert to fraction form
    70,663.92/97,521.62 = 40,458.70/x
  3. Step 3: Cross multiply
    70,663.92x = 97,521.62 × 40,458.70
  4. Step 4: Simplify right side
    70,663.92x = 3,945,597,967.09
  5. Step 5: Solve for x
    x = 3,945,597,967.09/70,663.92
  6. Step 6: Final answer
    x = 55,836.10

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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.