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Finding the Fourth Proportional to 6,875.63, 9,492.63 and 5,279.22

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Solution

The fourth proportional to 6,875.63, 9,492.63 and 5,279.22 is: 7,288.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.63 : 9,492.63 = 5,279.22 : x
  2. Step 2: Convert to fraction form
    6,875.63/9,492.63 = 5,279.22/x
  3. Step 3: Cross multiply
    6,875.63x = 9,492.63 × 5,279.22
  4. Step 4: Simplify right side
    6,875.63x = 50,113,662.35
  5. Step 5: Solve for x
    x = 50,113,662.35/6,875.63
  6. Step 6: Final answer
    x = 7,288.59

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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.