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Finding the Fourth Proportional to 58,277.97, 87,407.52 and 20,831.67

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Solution

The fourth proportional to 58,277.97, 87,407.52 and 20,831.67 is: 31,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,277.97 : 87,407.52 = 20,831.67 : x
  2. Step 2: Convert to fraction form
    58,277.97/87,407.52 = 20,831.67/x
  3. Step 3: Cross multiply
    58,277.97x = 87,407.52 × 20,831.67
  4. Step 4: Simplify right side
    58,277.97x = 1,820,844,612.16
  5. Step 5: Solve for x
    x = 1,820,844,612.16/58,277.97
  6. Step 6: Final answer
    x = 31,244.13

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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.