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Finding the Fourth Proportional to 65,535.96, 90,403.09 and 45,404.62

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Solution

The fourth proportional to 65,535.96, 90,403.09 and 45,404.62 is: 62,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,535.96 : 90,403.09 = 45,404.62 : x
  2. Step 2: Convert to fraction form
    65,535.96/90,403.09 = 45,404.62/x
  3. Step 3: Cross multiply
    65,535.96x = 90,403.09 × 45,404.62
  4. Step 4: Simplify right side
    65,535.96x = 4,104,717,948.28
  5. Step 5: Solve for x
    x = 4,104,717,948.28/65,535.96
  6. Step 6: Final answer
    x = 62,633.06

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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.