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Finding the Fourth Proportional to 66,575.46, 91,831.95 and 50,624.94

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Solution

The fourth proportional to 66,575.46, 91,831.95 and 50,624.94 is: 69,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.46 : 91,831.95 = 50,624.94 : x
  2. Step 2: Convert to fraction form
    66,575.46/91,831.95 = 50,624.94/x
  3. Step 3: Cross multiply
    66,575.46x = 91,831.95 × 50,624.94
  4. Step 4: Simplify right side
    66,575.46x = 4,648,986,958.83
  5. Step 5: Solve for x
    x = 4,648,986,958.83/66,575.46
  6. Step 6: Final answer
    x = 69,830.34

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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.