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Finding the Fourth Proportional to 66,187.98, 91,459.53 and 48,251.70

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Solution

The fourth proportional to 66,187.98, 91,459.53 and 48,251.70 is: 66,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.98 : 91,459.53 = 48,251.70 : x
  2. Step 2: Convert to fraction form
    66,187.98/91,459.53 = 48,251.70/x
  3. Step 3: Cross multiply
    66,187.98x = 91,459.53 × 48,251.70
  4. Step 4: Simplify right side
    66,187.98x = 4,413,077,803.70
  5. Step 5: Solve for x
    x = 4,413,077,803.70/66,187.98
  6. Step 6: Final answer
    x = 66,674.91

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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.