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Finding the Fourth Proportional to 9,389.60, 14,068.20 and 4,448.60

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Solution

The fourth proportional to 9,389.60, 14,068.20 and 4,448.60 is: 6,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.60 : 14,068.20 = 4,448.60 : x
  2. Step 2: Convert to fraction form
    9,389.60/14,068.20 = 4,448.60/x
  3. Step 3: Cross multiply
    9,389.60x = 14,068.20 × 4,448.60
  4. Step 4: Simplify right side
    9,389.60x = 62,583,794.52
  5. Step 5: Solve for x
    x = 62,583,794.52/9,389.60
  6. Step 6: Final answer
    x = 6,665.22

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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.