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Finding the Fourth Proportional to 15,458.56, 21,328.64 and 9,492.48

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Solution

The fourth proportional to 15,458.56, 21,328.64 and 9,492.48 is: 13,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.56 : 21,328.64 = 9,492.48 : x
  2. Step 2: Convert to fraction form
    15,458.56/21,328.64 = 9,492.48/x
  3. Step 3: Cross multiply
    15,458.56x = 21,328.64 × 9,492.48
  4. Step 4: Simplify right side
    15,458.56x = 202,461,688.63
  5. Step 5: Solve for x
    x = 202,461,688.63/15,458.56
  6. Step 6: Final answer
    x = 13,097.06

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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.