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Finding the Fourth Proportional to 28,182.52, 38,892.14 and 15,607.52

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Solution

The fourth proportional to 28,182.52, 38,892.14 and 15,607.52 is: 21,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.52 : 38,892.14 = 15,607.52 : x
  2. Step 2: Convert to fraction form
    28,182.52/38,892.14 = 15,607.52/x
  3. Step 3: Cross multiply
    28,182.52x = 38,892.14 × 15,607.52
  4. Step 4: Simplify right side
    28,182.52x = 607,009,852.89
  5. Step 5: Solve for x
    x = 607,009,852.89/28,182.52
  6. Step 6: Final answer
    x = 21,538.52

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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.