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Finding the Fourth Proportional to 18,873.84, 26,045.64 and 10,490.16

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Solution

The fourth proportional to 18,873.84, 26,045.64 and 10,490.16 is: 14,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.84 : 26,045.64 = 10,490.16 : x
  2. Step 2: Convert to fraction form
    18,873.84/26,045.64 = 10,490.16/x
  3. Step 3: Cross multiply
    18,873.84x = 26,045.64 × 10,490.16
  4. Step 4: Simplify right side
    18,873.84x = 273,222,930.90
  5. Step 5: Solve for x
    x = 273,222,930.90/18,873.84
  6. Step 6: Final answer
    x = 14,476.28

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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.