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Finding the Fourth Proportional to 8,736.04, 12,047.76 and 6,503.48

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Solution

The fourth proportional to 8,736.04, 12,047.76 and 6,503.48 is: 8,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.04 : 12,047.76 = 6,503.48 : x
  2. Step 2: Convert to fraction form
    8,736.04/12,047.76 = 6,503.48/x
  3. Step 3: Cross multiply
    8,736.04x = 12,047.76 × 6,503.48
  4. Step 4: Simplify right side
    8,736.04x = 78,352,366.20
  5. Step 5: Solve for x
    x = 78,352,366.20/8,736.04
  6. Step 6: Final answer
    x = 8,968.87

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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.