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Finding the Fourth Proportional to 42,153.54, 63,209.04 and 14,063.64

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Solution

The fourth proportional to 42,153.54, 63,209.04 and 14,063.64 is: 21,088.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153.54 : 63,209.04 = 14,063.64 : x
  2. Step 2: Convert to fraction form
    42,153.54/63,209.04 = 14,063.64/x
  3. Step 3: Cross multiply
    42,153.54x = 63,209.04 × 14,063.64
  4. Step 4: Simplify right side
    42,153.54x = 888,949,183.31
  5. Step 5: Solve for x
    x = 888,949,183.31/42,153.54
  6. Step 6: Final answer
    x = 21,088.36

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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.