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Finding the Fourth Proportional to 11,095.80, 16,632.90 and 9,929.40

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Solution

The fourth proportional to 11,095.80, 16,632.90 and 9,929.40 is: 14,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,095.80 : 16,632.90 = 9,929.40 : x
  2. Step 2: Convert to fraction form
    11,095.80/16,632.90 = 9,929.40/x
  3. Step 3: Cross multiply
    11,095.80x = 16,632.90 × 9,929.40
  4. Step 4: Simplify right side
    11,095.80x = 165,154,717.26
  5. Step 5: Solve for x
    x = 165,154,717.26/11,095.80
  6. Step 6: Final answer
    x = 14,884.44

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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.