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Finding the Fourth Proportional to 11,068.70, 16,555.05 and 9,907.10

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Solution

The fourth proportional to 11,068.70, 16,555.05 and 9,907.10 is: 14,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.70 : 16,555.05 = 9,907.10 : x
  2. Step 2: Convert to fraction form
    11,068.70/16,555.05 = 9,907.10/x
  3. Step 3: Cross multiply
    11,068.70x = 16,555.05 × 9,907.10
  4. Step 4: Simplify right side
    11,068.70x = 164,012,535.86
  5. Step 5: Solve for x
    x = 164,012,535.86/11,068.70
  6. Step 6: Final answer
    x = 14,817.69

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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.