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Finding the Fourth Proportional to 66,595.03, 91,903.94 and 38,300.74

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Solution

The fourth proportional to 66,595.03, 91,903.94 and 38,300.74 is: 52,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,595.03 : 91,903.94 = 38,300.74 : x
  2. Step 2: Convert to fraction form
    66,595.03/91,903.94 = 38,300.74/x
  3. Step 3: Cross multiply
    66,595.03x = 91,903.94 × 38,300.74
  4. Step 4: Simplify right side
    66,595.03x = 3,519,988,910.92
  5. Step 5: Solve for x
    x = 3,519,988,910.92/66,595.03
  6. Step 6: Final answer
    x = 52,856.63

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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.