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Finding the Fourth Proportional to 65,551.84, 90,458.64 and 37,257.12

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Solution

The fourth proportional to 65,551.84, 90,458.64 and 37,257.12 is: 51,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,551.84 : 90,458.64 = 37,257.12 : x
  2. Step 2: Convert to fraction form
    65,551.84/90,458.64 = 37,257.12/x
  3. Step 3: Cross multiply
    65,551.84x = 90,458.64 × 37,257.12
  4. Step 4: Simplify right side
    65,551.84x = 3,370,228,405.52
  5. Step 5: Solve for x
    x = 3,370,228,405.52/65,551.84
  6. Step 6: Final answer
    x = 51,413.18

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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.