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Finding the Fourth Proportional to 8,798.40, 13,150.80 and 6,206.40

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Solution

The fourth proportional to 8,798.40, 13,150.80 and 6,206.40 is: 9,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.40 : 13,150.80 = 6,206.40 : x
  2. Step 2: Convert to fraction form
    8,798.40/13,150.80 = 6,206.40/x
  3. Step 3: Cross multiply
    8,798.40x = 13,150.80 × 6,206.40
  4. Step 4: Simplify right side
    8,798.40x = 81,619,125.12
  5. Step 5: Solve for x
    x = 81,619,125.12/8,798.40
  6. Step 6: Final answer
    x = 9,276.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.