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Finding the Fourth Proportional to 66,624.63, 91,933.14 and 42,783.63

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Solution

The fourth proportional to 66,624.63, 91,933.14 and 42,783.63 is: 59,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,624.63 : 91,933.14 = 42,783.63 : x
  2. Step 2: Convert to fraction form
    66,624.63/91,933.14 = 42,783.63/x
  3. Step 3: Cross multiply
    66,624.63x = 91,933.14 × 42,783.63
  4. Step 4: Simplify right side
    66,624.63x = 3,933,233,446.50
  5. Step 5: Solve for x
    x = 3,933,233,446.50/66,624.63
  6. Step 6: Final answer
    x = 59,035.73

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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.