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Finding the Fourth Proportional to 65,864.04, 90,893.10 and 37,571.40

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Solution

The fourth proportional to 65,864.04, 90,893.10 and 37,571.40 is: 51,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,864.04 : 90,893.10 = 37,571.40 : x
  2. Step 2: Convert to fraction form
    65,864.04/90,893.10 = 37,571.40/x
  3. Step 3: Cross multiply
    65,864.04x = 90,893.10 × 37,571.40
  4. Step 4: Simplify right side
    65,864.04x = 3,414,981,017.34
  5. Step 5: Solve for x
    x = 3,414,981,017.34/65,864.04
  6. Step 6: Final answer
    x = 51,848.95

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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.