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Finding the Fourth Proportional to 40,590, 60,831.54 and 17,187.48

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Solution

The fourth proportional to 40,590, 60,831.54 and 17,187.48 is: 25,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,590 : 60,831.54 = 17,187.48 : x
  2. Step 2: Convert to fraction form
    40,590/60,831.54 = 17,187.48/x
  3. Step 3: Cross multiply
    40,590x = 60,831.54 × 17,187.48
  4. Step 4: Simplify right side
    40,590x = 1,045,540,877.12
  5. Step 5: Solve for x
    x = 1,045,540,877.12/40,590
  6. Step 6: Final answer
    x = 25,758.58

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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.