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Finding the Fourth Proportional to 6,341.88, 8,748.18 and 3,688.98

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Solution

The fourth proportional to 6,341.88, 8,748.18 and 3,688.98 is: 5,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,341.88 : 8,748.18 = 3,688.98 : x
  2. Step 2: Convert to fraction form
    6,341.88/8,748.18 = 3,688.98/x
  3. Step 3: Cross multiply
    6,341.88x = 8,748.18 × 3,688.98
  4. Step 4: Simplify right side
    6,341.88x = 32,271,861.06
  5. Step 5: Solve for x
    x = 32,271,861.06/6,341.88
  6. Step 6: Final answer
    x = 5,088.69

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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.