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Finding the Fourth Proportional to 65,354.36, 90,191.58 and 37,065.56

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Solution

The fourth proportional to 65,354.36, 90,191.58 and 37,065.56 is: 51,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354.36 : 90,191.58 = 37,065.56 : x
  2. Step 2: Convert to fraction form
    65,354.36/90,191.58 = 37,065.56/x
  3. Step 3: Cross multiply
    65,354.36x = 90,191.58 × 37,065.56
  4. Step 4: Simplify right side
    65,354.36x = 3,343,001,419.98
  5. Step 5: Solve for x
    x = 3,343,001,419.98/65,354.36
  6. Step 6: Final answer
    x = 51,151.93

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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.