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Finding the Fourth Proportional to 13,816.61, 19,066.93 and 7,528.99

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Solution

The fourth proportional to 13,816.61, 19,066.93 and 7,528.99 is: 10,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.61 : 19,066.93 = 7,528.99 : x
  2. Step 2: Convert to fraction form
    13,816.61/19,066.93 = 7,528.99/x
  3. Step 3: Cross multiply
    13,816.61x = 19,066.93 × 7,528.99
  4. Step 4: Simplify right side
    13,816.61x = 143,554,592.32
  5. Step 5: Solve for x
    x = 143,554,592.32/13,816.61
  6. Step 6: Final answer
    x = 10,390.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.