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Finding the Fourth Proportional to 18,873.51, 26,045.75 and 10,807.12

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Solution

The fourth proportional to 18,873.51, 26,045.75 and 10,807.12 is: 14,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.51 : 26,045.75 = 10,807.12 : x
  2. Step 2: Convert to fraction form
    18,873.51/26,045.75 = 10,807.12/x
  3. Step 3: Cross multiply
    18,873.51x = 26,045.75 × 10,807.12
  4. Step 4: Simplify right side
    18,873.51x = 281,479,605.31
  5. Step 5: Solve for x
    x = 281,479,605.31/18,873.51
  6. Step 6: Final answer
    x = 14,914.01

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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.