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Finding the Fourth Proportional to 68,036.40, 93,922.12 and 45,413.60

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Solution

The fourth proportional to 68,036.40, 93,922.12 and 45,413.60 is: 62,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,036.40 : 93,922.12 = 45,413.60 : x
  2. Step 2: Convert to fraction form
    68,036.40/93,922.12 = 45,413.60/x
  3. Step 3: Cross multiply
    68,036.40x = 93,922.12 × 45,413.60
  4. Step 4: Simplify right side
    68,036.40x = 4,265,341,588.83
  5. Step 5: Solve for x
    x = 4,265,341,588.83/68,036.40
  6. Step 6: Final answer
    x = 62,692.05

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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.