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Finding the Fourth Proportional to 8,988.85, 12,410.39 and 5,803.58

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Solution

The fourth proportional to 8,988.85, 12,410.39 and 5,803.58 is: 8,012.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.85 : 12,410.39 = 5,803.58 : x
  2. Step 2: Convert to fraction form
    8,988.85/12,410.39 = 5,803.58/x
  3. Step 3: Cross multiply
    8,988.85x = 12,410.39 × 5,803.58
  4. Step 4: Simplify right side
    8,988.85x = 72,024,600.13
  5. Step 5: Solve for x
    x = 72,024,600.13/8,988.85
  6. Step 6: Final answer
    x = 8,012.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.