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Finding the Fourth Proportional to 15,796.80, 23,551.92 and 15,386.40

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Solution

The fourth proportional to 15,796.80, 23,551.92 and 15,386.40 is: 22,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.80 : 23,551.92 = 15,386.40 : x
  2. Step 2: Convert to fraction form
    15,796.80/23,551.92 = 15,386.40/x
  3. Step 3: Cross multiply
    15,796.80x = 23,551.92 × 15,386.40
  4. Step 4: Simplify right side
    15,796.80x = 362,379,261.89
  5. Step 5: Solve for x
    x = 362,379,261.89/15,796.80
  6. Step 6: Final answer
    x = 22,940.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.