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Finding the Fourth Proportional to 7,068.48, 10,602.72 and 2,684.90

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Solution

The fourth proportional to 7,068.48, 10,602.72 and 2,684.90 is: 4,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.48 : 10,602.72 = 2,684.90 : x
  2. Step 2: Convert to fraction form
    7,068.48/10,602.72 = 2,684.90/x
  3. Step 3: Cross multiply
    7,068.48x = 10,602.72 × 2,684.90
  4. Step 4: Simplify right side
    7,068.48x = 28,467,242.93
  5. Step 5: Solve for x
    x = 28,467,242.93/7,068.48
  6. Step 6: Final answer
    x = 4,027.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.