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Finding the Fourth Proportional to 62,275.90, 85,940.30 and 33,980.98

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Solution

The fourth proportional to 62,275.90, 85,940.30 and 33,980.98 is: 46,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,275.90 : 85,940.30 = 33,980.98 : x
  2. Step 2: Convert to fraction form
    62,275.90/85,940.30 = 33,980.98/x
  3. Step 3: Cross multiply
    62,275.90x = 85,940.30 × 33,980.98
  4. Step 4: Simplify right side
    62,275.90x = 2,920,335,615.49
  5. Step 5: Solve for x
    x = 2,920,335,615.49/62,275.90
  6. Step 6: Final answer
    x = 46,893.51

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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.