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Finding the Fourth Proportional to 66,885.48, 100,337.94 and 35,703.72

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Solution

The fourth proportional to 66,885.48, 100,337.94 and 35,703.72 is: 53,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885.48 : 100,337.94 = 35,703.72 : x
  2. Step 2: Convert to fraction form
    66,885.48/100,337.94 = 35,703.72/x
  3. Step 3: Cross multiply
    66,885.48x = 100,337.94 × 35,703.72
  4. Step 4: Simplify right side
    66,885.48x = 3,582,437,715.14
  5. Step 5: Solve for x
    x = 3,582,437,715.14/66,885.48
  6. Step 6: Final answer
    x = 53,560.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.