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Finding the Fourth Proportional to 37,012.80, 51,081.12 and 21,094.08

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Solution

The fourth proportional to 37,012.80, 51,081.12 and 21,094.08 is: 29,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,012.80 : 51,081.12 = 21,094.08 : x
  2. Step 2: Convert to fraction form
    37,012.80/51,081.12 = 21,094.08/x
  3. Step 3: Cross multiply
    37,012.80x = 51,081.12 × 21,094.08
  4. Step 4: Simplify right side
    37,012.80x = 1,077,509,231.77
  5. Step 5: Solve for x
    x = 1,077,509,231.77/37,012.80
  6. Step 6: Final answer
    x = 29,111.80

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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.