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Finding the Fourth Proportional to 65,848.73, 90,870.55 and 35,633.39

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Solution

The fourth proportional to 65,848.73, 90,870.55 and 35,633.39 is: 49,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,848.73 : 90,870.55 = 35,633.39 : x
  2. Step 2: Convert to fraction form
    65,848.73/90,870.55 = 35,633.39/x
  3. Step 3: Cross multiply
    65,848.73x = 90,870.55 × 35,633.39
  4. Step 4: Simplify right side
    65,848.73x = 3,238,025,747.66
  5. Step 5: Solve for x
    x = 3,238,025,747.66/65,848.73
  6. Step 6: Final answer
    x = 49,173.70

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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.