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Finding the Fourth Proportional to 66,403.47, 91,636.79 and 36,595.47

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Solution

The fourth proportional to 66,403.47, 91,636.79 and 36,595.47 is: 50,501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,403.47 : 91,636.79 = 36,595.47 : x
  2. Step 2: Convert to fraction form
    66,403.47/91,636.79 = 36,595.47/x
  3. Step 3: Cross multiply
    66,403.47x = 91,636.79 × 36,595.47
  4. Step 4: Simplify right side
    66,403.47x = 3,353,491,399.34
  5. Step 5: Solve for x
    x = 3,353,491,399.34/66,403.47
  6. Step 6: Final answer
    x = 50,501.75

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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.