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Finding the Fourth Proportional to 9,069.63, 13,607.45 and 4,390.23

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Solution

The fourth proportional to 9,069.63, 13,607.45 and 4,390.23 is: 6,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,069.63 : 13,607.45 = 4,390.23 : x
  2. Step 2: Convert to fraction form
    9,069.63/13,607.45 = 4,390.23/x
  3. Step 3: Cross multiply
    9,069.63x = 13,607.45 × 4,390.23
  4. Step 4: Simplify right side
    9,069.63x = 59,739,813.26
  5. Step 5: Solve for x
    x = 59,739,813.26/9,069.63
  6. Step 6: Final answer
    x = 6,586.80

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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.