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Finding the Fourth Proportional to 8,899.40, 13,349.10 and 8,841.80

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Solution

The fourth proportional to 8,899.40, 13,349.10 and 8,841.80 is: 13,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.40 : 13,349.10 = 8,841.80 : x
  2. Step 2: Convert to fraction form
    8,899.40/13,349.10 = 8,841.80/x
  3. Step 3: Cross multiply
    8,899.40x = 13,349.10 × 8,841.80
  4. Step 4: Simplify right side
    8,899.40x = 118,030,072.38
  5. Step 5: Solve for x
    x = 118,030,072.38/8,899.40
  6. Step 6: Final answer
    x = 13,262.70

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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.