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Finding the Fourth Proportional to 15,598.09, 21,527.80 and 9,935.28

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Solution

The fourth proportional to 15,598.09, 21,527.80 and 9,935.28 is: 13,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.09 : 21,527.80 = 9,935.28 : x
  2. Step 2: Convert to fraction form
    15,598.09/21,527.80 = 9,935.28/x
  3. Step 3: Cross multiply
    15,598.09x = 21,527.80 × 9,935.28
  4. Step 4: Simplify right side
    15,598.09x = 213,884,720.78
  5. Step 5: Solve for x
    x = 213,884,720.78/15,598.09
  6. Step 6: Final answer
    x = 13,712.24

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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.