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Finding the Fourth Proportional to 13,816, 19,066.08 and 7,528.38

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Solution

The fourth proportional to 13,816, 19,066.08 and 7,528.38 is: 10,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816 : 19,066.08 = 7,528.38 : x
  2. Step 2: Convert to fraction form
    13,816/19,066.08 = 7,528.38/x
  3. Step 3: Cross multiply
    13,816x = 19,066.08 × 7,528.38
  4. Step 4: Simplify right side
    13,816x = 143,536,600.02
  5. Step 5: Solve for x
    x = 143,536,600.02/13,816
  6. Step 6: Final answer
    x = 10,389.16

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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.