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Finding the Fourth Proportional to 7,649.08, 10,555.85 and 4,246

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Solution

The fourth proportional to 7,649.08, 10,555.85 and 4,246 is: 5,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.08 : 10,555.85 = 4,246 : x
  2. Step 2: Convert to fraction form
    7,649.08/10,555.85 = 4,246/x
  3. Step 3: Cross multiply
    7,649.08x = 10,555.85 × 4,246
  4. Step 4: Simplify right side
    7,649.08x = 44,820,139.10
  5. Step 5: Solve for x
    x = 44,820,139.10/7,649.08
  6. Step 6: Final answer
    x = 5,859.55

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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.