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Finding the Fourth Proportional to 66,522.50, 91,801.06 and 36,714.50

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Solution

The fourth proportional to 66,522.50, 91,801.06 and 36,714.50 is: 50,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,522.50 : 91,801.06 = 36,714.50 : x
  2. Step 2: Convert to fraction form
    66,522.50/91,801.06 = 36,714.50/x
  3. Step 3: Cross multiply
    66,522.50x = 91,801.06 × 36,714.50
  4. Step 4: Simplify right side
    66,522.50x = 3,370,430,017.37
  5. Step 5: Solve for x
    x = 3,370,430,017.37/66,522.50
  6. Step 6: Final answer
    x = 50,666.02

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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.