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Finding the Fourth Proportional to 18,460.58, 25,459.52 and 11,285.06

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Solution

The fourth proportional to 18,460.58, 25,459.52 and 11,285.06 is: 15,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.58 : 25,459.52 = 11,285.06 : x
  2. Step 2: Convert to fraction form
    18,460.58/25,459.52 = 11,285.06/x
  3. Step 3: Cross multiply
    18,460.58x = 25,459.52 × 11,285.06
  4. Step 4: Simplify right side
    18,460.58x = 287,312,210.77
  5. Step 5: Solve for x
    x = 287,312,210.77/18,460.58
  6. Step 6: Final answer
    x = 15,563.55

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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.