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Finding the Fourth Proportional to 66,784.64, 92,158.70 and 36,570.30

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Solution

The fourth proportional to 66,784.64, 92,158.70 and 36,570.30 is: 50,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.64 : 92,158.70 = 36,570.30 : x
  2. Step 2: Convert to fraction form
    66,784.64/92,158.70 = 36,570.30/x
  3. Step 3: Cross multiply
    66,784.64x = 92,158.70 × 36,570.30
  4. Step 4: Simplify right side
    66,784.64x = 3,370,271,123.76
  5. Step 5: Solve for x
    x = 3,370,271,123.76/66,784.64
  6. Step 6: Final answer
    x = 50,464.77

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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.