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Finding the Fourth Proportional to 61,713.10, 85,159.62 and 36,220.48

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Solution

The fourth proportional to 61,713.10, 85,159.62 and 36,220.48 is: 49,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,713.10 : 85,159.62 = 36,220.48 : x
  2. Step 2: Convert to fraction form
    61,713.10/85,159.62 = 36,220.48/x
  3. Step 3: Cross multiply
    61,713.10x = 85,159.62 × 36,220.48
  4. Step 4: Simplify right side
    61,713.10x = 3,084,522,100.12
  5. Step 5: Solve for x
    x = 3,084,522,100.12/61,713.10
  6. Step 6: Final answer
    x = 49,981.64

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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.