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Finding the Fourth Proportional to 15,796.64, 21,800.16 and 10,482.40

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Solution

The fourth proportional to 15,796.64, 21,800.16 and 10,482.40 is: 14,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.64 : 21,800.16 = 10,482.40 : x
  2. Step 2: Convert to fraction form
    15,796.64/21,800.16 = 10,482.40/x
  3. Step 3: Cross multiply
    15,796.64x = 21,800.16 × 10,482.40
  4. Step 4: Simplify right side
    15,796.64x = 228,517,997.18
  5. Step 5: Solve for x
    x = 228,517,997.18/15,796.64
  6. Step 6: Final answer
    x = 14,466.24

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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.