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Finding the Fourth Proportional to 66,188.76, 91,342.53 and 37,903.56

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Solution

The fourth proportional to 66,188.76, 91,342.53 and 37,903.56 is: 52,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,188.76 : 91,342.53 = 37,903.56 : x
  2. Step 2: Convert to fraction form
    66,188.76/91,342.53 = 37,903.56/x
  3. Step 3: Cross multiply
    66,188.76x = 91,342.53 × 37,903.56
  4. Step 4: Simplify right side
    66,188.76x = 3,462,207,066.41
  5. Step 5: Solve for x
    x = 3,462,207,066.41/66,188.76
  6. Step 6: Final answer
    x = 52,308.08

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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.