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Finding the Fourth Proportional to 66,545.54, 91,831.64 and 37,864.58

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Solution

The fourth proportional to 66,545.54, 91,831.64 and 37,864.58 is: 52,252.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,545.54 : 91,831.64 = 37,864.58 : x
  2. Step 2: Convert to fraction form
    66,545.54/91,831.64 = 37,864.58/x
  3. Step 3: Cross multiply
    66,545.54x = 91,831.64 × 37,864.58
  4. Step 4: Simplify right side
    66,545.54x = 3,477,165,830.83
  5. Step 5: Solve for x
    x = 3,477,165,830.83/66,545.54
  6. Step 6: Final answer
    x = 52,252.42

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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.