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Finding the Fourth Proportional to 9,051.42, 12,477.88 and 6,354.43

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Solution

The fourth proportional to 9,051.42, 12,477.88 and 6,354.43 is: 8,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,051.42 : 12,477.88 = 6,354.43 : x
  2. Step 2: Convert to fraction form
    9,051.42/12,477.88 = 6,354.43/x
  3. Step 3: Cross multiply
    9,051.42x = 12,477.88 × 6,354.43
  4. Step 4: Simplify right side
    9,051.42x = 79,289,767.93
  5. Step 5: Solve for x
    x = 79,289,767.93/9,051.42
  6. Step 6: Final answer
    x = 8,759.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.