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Finding the Fourth Proportional to 65,358.56, 90,191.52 and 37,066.88

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Solution

The fourth proportional to 65,358.56, 90,191.52 and 37,066.88 is: 51,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,358.56 : 90,191.52 = 37,066.88 : x
  2. Step 2: Convert to fraction form
    65,358.56/90,191.52 = 37,066.88/x
  3. Step 3: Cross multiply
    65,358.56x = 90,191.52 × 37,066.88
  4. Step 4: Simplify right side
    65,358.56x = 3,343,118,248.86
  5. Step 5: Solve for x
    x = 3,343,118,248.86/65,358.56
  6. Step 6: Final answer
    x = 51,150.43

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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.