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Finding the Fourth Proportional to 66,823.79, 92,165.65 and 48,912.26

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Solution

The fourth proportional to 66,823.79, 92,165.65 and 48,912.26 is: 67,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,823.79 : 92,165.65 = 48,912.26 : x
  2. Step 2: Convert to fraction form
    66,823.79/92,165.65 = 48,912.26/x
  3. Step 3: Cross multiply
    66,823.79x = 92,165.65 × 48,912.26
  4. Step 4: Simplify right side
    66,823.79x = 4,508,029,652.76
  5. Step 5: Solve for x
    x = 4,508,029,652.76/66,823.79
  6. Step 6: Final answer
    x = 67,461.45

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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.