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Finding the Fourth Proportional to 6,492.60, 8,962.74 and 4,137.92

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Solution

The fourth proportional to 6,492.60, 8,962.74 and 4,137.92 is: 5,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,492.60 : 8,962.74 = 4,137.92 : x
  2. Step 2: Convert to fraction form
    6,492.60/8,962.74 = 4,137.92/x
  3. Step 3: Cross multiply
    6,492.60x = 8,962.74 × 4,137.92
  4. Step 4: Simplify right side
    6,492.60x = 37,087,101.10
  5. Step 5: Solve for x
    x = 37,087,101.10/6,492.60
  6. Step 6: Final answer
    x = 5,712.21

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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.