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Finding the Fourth Proportional to 66,131.58, 99,166.06 and 25,624.06

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Solution

The fourth proportional to 66,131.58, 99,166.06 and 25,624.06 is: 38,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.58 : 99,166.06 = 25,624.06 : x
  2. Step 2: Convert to fraction form
    66,131.58/99,166.06 = 25,624.06/x
  3. Step 3: Cross multiply
    66,131.58x = 99,166.06 × 25,624.06
  4. Step 4: Simplify right side
    66,131.58x = 2,541,037,071.40
  5. Step 5: Solve for x
    x = 2,541,037,071.40/66,131.58
  6. Step 6: Final answer
    x = 38,423.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.