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Finding the Fourth Proportional to 66,943.33, 100,415.35 and 22,570.47

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Solution

The fourth proportional to 66,943.33, 100,415.35 and 22,570.47 is: 33,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.33 : 100,415.35 = 22,570.47 : x
  2. Step 2: Convert to fraction form
    66,943.33/100,415.35 = 22,570.47/x
  3. Step 3: Cross multiply
    66,943.33x = 100,415.35 × 22,570.47
  4. Step 4: Simplify right side
    66,943.33x = 2,266,421,545.97
  5. Step 5: Solve for x
    x = 2,266,421,545.97/66,943.33
  6. Step 6: Final answer
    x = 33,855.82

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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.