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Finding the Fourth Proportional to 7,616.45, 10,510.20 and 4,259

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Solution

The fourth proportional to 7,616.45, 10,510.20 and 4,259 is: 5,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.45 : 10,510.20 = 4,259 : x
  2. Step 2: Convert to fraction form
    7,616.45/10,510.20 = 4,259/x
  3. Step 3: Cross multiply
    7,616.45x = 10,510.20 × 4,259
  4. Step 4: Simplify right side
    7,616.45x = 44,762,941.80
  5. Step 5: Solve for x
    x = 44,762,941.80/7,616.45
  6. Step 6: Final answer
    x = 5,877.14

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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.