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Finding the Fourth Proportional to 61,812.72, 85,301.10 and 33,518.21

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Solution

The fourth proportional to 61,812.72, 85,301.10 and 33,518.21 is: 46,254.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,812.72 : 85,301.10 = 33,518.21 : x
  2. Step 2: Convert to fraction form
    61,812.72/85,301.10 = 33,518.21/x
  3. Step 3: Cross multiply
    61,812.72x = 85,301.10 × 33,518.21
  4. Step 4: Simplify right side
    61,812.72x = 2,859,139,756.53
  5. Step 5: Solve for x
    x = 2,859,139,756.53/61,812.72
  6. Step 6: Final answer
    x = 46,254.88

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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.