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Finding the Fourth Proportional to 66,010.90, 99,004.20 and 41,006.20

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Solution

The fourth proportional to 66,010.90, 99,004.20 and 41,006.20 is: 61,501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,010.90 : 99,004.20 = 41,006.20 : x
  2. Step 2: Convert to fraction form
    66,010.90/99,004.20 = 41,006.20/x
  3. Step 3: Cross multiply
    66,010.90x = 99,004.20 × 41,006.20
  4. Step 4: Simplify right side
    66,010.90x = 4,059,786,026.04
  5. Step 5: Solve for x
    x = 4,059,786,026.04/66,010.90
  6. Step 6: Final answer
    x = 61,501.75

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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.