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Finding the Fourth Proportional to 12,357.64, 18,537.48 and 3,592.54

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Solution

The fourth proportional to 12,357.64, 18,537.48 and 3,592.54 is: 5,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.64 : 18,537.48 = 3,592.54 : x
  2. Step 2: Convert to fraction form
    12,357.64/18,537.48 = 3,592.54/x
  3. Step 3: Cross multiply
    12,357.64x = 18,537.48 × 3,592.54
  4. Step 4: Simplify right side
    12,357.64x = 66,596,638.40
  5. Step 5: Solve for x
    x = 66,596,638.40/12,357.64
  6. Step 6: Final answer
    x = 5,389.11

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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.