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Finding the Fourth Proportional to 7,616.66, 10,510.72 and 4,259.84

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Solution

The fourth proportional to 7,616.66, 10,510.72 and 4,259.84 is: 5,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.66 : 10,510.72 = 4,259.84 : x
  2. Step 2: Convert to fraction form
    7,616.66/10,510.72 = 4,259.84/x
  3. Step 3: Cross multiply
    7,616.66x = 10,510.72 × 4,259.84
  4. Step 4: Simplify right side
    7,616.66x = 44,773,922.28
  5. Step 5: Solve for x
    x = 44,773,922.28/7,616.66
  6. Step 6: Final answer
    x = 5,878.42

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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.