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Finding the Fourth Proportional to 5,603.42, 8,405.36 and 1,654.68

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Solution

The fourth proportional to 5,603.42, 8,405.36 and 1,654.68 is: 2,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.42 : 8,405.36 = 1,654.68 : x
  2. Step 2: Convert to fraction form
    5,603.42/8,405.36 = 1,654.68/x
  3. Step 3: Cross multiply
    5,603.42x = 8,405.36 × 1,654.68
  4. Step 4: Simplify right side
    5,603.42x = 13,908,167.91
  5. Step 5: Solve for x
    x = 13,908,167.91/5,603.42
  6. Step 6: Final answer
    x = 2,482.09

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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.