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Finding the Fourth Proportional to 36,963.60, 55,445.40 and 21,411.60

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Solution

The fourth proportional to 36,963.60, 55,445.40 and 21,411.60 is: 32,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,963.60 : 55,445.40 = 21,411.60 : x
  2. Step 2: Convert to fraction form
    36,963.60/55,445.40 = 21,411.60/x
  3. Step 3: Cross multiply
    36,963.60x = 55,445.40 × 21,411.60
  4. Step 4: Simplify right side
    36,963.60x = 1,187,174,726.64
  5. Step 5: Solve for x
    x = 1,187,174,726.64/36,963.60
  6. Step 6: Final answer
    x = 32,117.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.