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Finding the Fourth Proportional to 65,205.74, 89,985.06 and 36,525.15

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Solution

The fourth proportional to 65,205.74, 89,985.06 and 36,525.15 is: 50,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,205.74 : 89,985.06 = 36,525.15 : x
  2. Step 2: Convert to fraction form
    65,205.74/89,985.06 = 36,525.15/x
  3. Step 3: Cross multiply
    65,205.74x = 89,985.06 × 36,525.15
  4. Step 4: Simplify right side
    65,205.74x = 3,286,717,814.26
  5. Step 5: Solve for x
    x = 3,286,717,814.26/65,205.74
  6. Step 6: Final answer
    x = 50,405.34

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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.