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Finding the Fourth Proportional to 12,271.68, 18,404.43 and 3,506.64

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Solution

The fourth proportional to 12,271.68, 18,404.43 and 3,506.64 is: 5,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.68 : 18,404.43 = 3,506.64 : x
  2. Step 2: Convert to fraction form
    12,271.68/18,404.43 = 3,506.64/x
  3. Step 3: Cross multiply
    12,271.68x = 18,404.43 × 3,506.64
  4. Step 4: Simplify right side
    12,271.68x = 64,537,710.42
  5. Step 5: Solve for x
    x = 64,537,710.42/12,271.68
  6. Step 6: Final answer
    x = 5,259.08

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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.