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Finding the Fourth Proportional to 64,911.60, 97,410.60 and 36,831.60

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Solution

The fourth proportional to 64,911.60, 97,410.60 and 36,831.60 is: 55,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,911.60 : 97,410.60 = 36,831.60 : x
  2. Step 2: Convert to fraction form
    64,911.60/97,410.60 = 36,831.60/x
  3. Step 3: Cross multiply
    64,911.60x = 97,410.60 × 36,831.60
  4. Step 4: Simplify right side
    64,911.60x = 3,587,788,254.96
  5. Step 5: Solve for x
    x = 3,587,788,254.96/64,911.60
  6. Step 6: Final answer
    x = 55,271.91

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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.