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Finding the Fourth Proportional to 58,697.36, 80,989.90 and 34,831.80

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Solution

The fourth proportional to 58,697.36, 80,989.90 and 34,831.80 is: 48,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,697.36 : 80,989.90 = 34,831.80 : x
  2. Step 2: Convert to fraction form
    58,697.36/80,989.90 = 34,831.80/x
  3. Step 3: Cross multiply
    58,697.36x = 80,989.90 × 34,831.80
  4. Step 4: Simplify right side
    58,697.36x = 2,821,023,998.82
  5. Step 5: Solve for x
    x = 2,821,023,998.82/58,697.36
  6. Step 6: Final answer
    x = 48,060.49

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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.