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Finding the Fourth Proportional to 61,269.40, 85,893.80 and 61,269.40

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Solution

The fourth proportional to 61,269.40, 85,893.80 and 61,269.40 is: 85,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,269.40 : 85,893.80 = 61,269.40 : x
  2. Step 2: Convert to fraction form
    61,269.40/85,893.80 = 61,269.40/x
  3. Step 3: Cross multiply
    61,269.40x = 85,893.80 × 61,269.40
  4. Step 4: Simplify right side
    61,269.40x = 5,262,661,589.72
  5. Step 5: Solve for x
    x = 5,262,661,589.72/61,269.40
  6. Step 6: Final answer
    x = 85,893.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.