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Finding the Fourth Proportional to 52,712.60, 79,258.57 and 48,602.86

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Solution

The fourth proportional to 52,712.60, 79,258.57 and 48,602.86 is: 73,079.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,712.60 : 79,258.57 = 48,602.86 : x
  2. Step 2: Convert to fraction form
    52,712.60/79,258.57 = 48,602.86/x
  3. Step 3: Cross multiply
    52,712.60x = 79,258.57 × 48,602.86
  4. Step 4: Simplify right side
    52,712.60x = 3,852,192,861.86
  5. Step 5: Solve for x
    x = 3,852,192,861.86/52,712.60
  6. Step 6: Final answer
    x = 73,079.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.