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Finding the Fourth Proportional to 8,755.10, 13,130.65 and 2,515.06

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Solution

The fourth proportional to 8,755.10, 13,130.65 and 2,515.06 is: 3,772.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.10 : 13,130.65 = 2,515.06 : x
  2. Step 2: Convert to fraction form
    8,755.10/13,130.65 = 2,515.06/x
  3. Step 3: Cross multiply
    8,755.10x = 13,130.65 × 2,515.06
  4. Step 4: Simplify right side
    8,755.10x = 33,024,372.59
  5. Step 5: Solve for x
    x = 33,024,372.59/8,755.10
  6. Step 6: Final answer
    x = 3,772.02

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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.