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Finding the Fourth Proportional to 7,705.78, 10,633.06 and 4,348.40

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Solution

The fourth proportional to 7,705.78, 10,633.06 and 4,348.40 is: 6,000.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.78 : 10,633.06 = 4,348.40 : x
  2. Step 2: Convert to fraction form
    7,705.78/10,633.06 = 4,348.40/x
  3. Step 3: Cross multiply
    7,705.78x = 10,633.06 × 4,348.40
  4. Step 4: Simplify right side
    7,705.78x = 46,236,798.10
  5. Step 5: Solve for x
    x = 46,236,798.10/7,705.78
  6. Step 6: Final answer
    x = 6,000.27

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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.