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Finding the Fourth Proportional to 71,036.88, 98,030.22 and 39,205.10

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Solution

The fourth proportional to 71,036.88, 98,030.22 and 39,205.10 is: 54,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,036.88 : 98,030.22 = 39,205.10 : x
  2. Step 2: Convert to fraction form
    71,036.88/98,030.22 = 39,205.10/x
  3. Step 3: Cross multiply
    71,036.88x = 98,030.22 × 39,205.10
  4. Step 4: Simplify right side
    71,036.88x = 3,843,284,087.97
  5. Step 5: Solve for x
    x = 3,843,284,087.97/71,036.88
  6. Step 6: Final answer
    x = 54,102.66

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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.