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Finding the Fourth Proportional to 13,038.52, 19,548.06 and 7,843.18

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Solution

The fourth proportional to 13,038.52, 19,548.06 and 7,843.18 is: 11,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.52 : 19,548.06 = 7,843.18 : x
  2. Step 2: Convert to fraction form
    13,038.52/19,548.06 = 7,843.18/x
  3. Step 3: Cross multiply
    13,038.52x = 19,548.06 × 7,843.18
  4. Step 4: Simplify right side
    13,038.52x = 153,318,953.23
  5. Step 5: Solve for x
    x = 153,318,953.23/13,038.52
  6. Step 6: Final answer
    x = 11,758.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.