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Finding the Fourth Proportional to 13,248.95, 18,283.86 and 7,281

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Solution

The fourth proportional to 13,248.95, 18,283.86 and 7,281 is: 10,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.95 : 18,283.86 = 7,281 : x
  2. Step 2: Convert to fraction form
    13,248.95/18,283.86 = 7,281/x
  3. Step 3: Cross multiply
    13,248.95x = 18,283.86 × 7,281
  4. Step 4: Simplify right side
    13,248.95x = 133,124,784.66
  5. Step 5: Solve for x
    x = 133,124,784.66/13,248.95
  6. Step 6: Final answer
    x = 10,047.95

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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.