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Finding the Fourth Proportional to 10,899.90, 16,349.94 and 7,007.04

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Solution

The fourth proportional to 10,899.90, 16,349.94 and 7,007.04 is: 10,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.90 : 16,349.94 = 7,007.04 : x
  2. Step 2: Convert to fraction form
    10,899.90/16,349.94 = 7,007.04/x
  3. Step 3: Cross multiply
    10,899.90x = 16,349.94 × 7,007.04
  4. Step 4: Simplify right side
    10,899.90x = 114,564,683.58
  5. Step 5: Solve for x
    x = 114,564,683.58/10,899.90
  6. Step 6: Final answer
    x = 10,510.62

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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.