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Finding the Fourth Proportional to 7,690.59, 10,618.70 and 4,710.49

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Solution

The fourth proportional to 7,690.59, 10,618.70 and 4,710.49 is: 6,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.59 : 10,618.70 = 4,710.49 : x
  2. Step 2: Convert to fraction form
    7,690.59/10,618.70 = 4,710.49/x
  3. Step 3: Cross multiply
    7,690.59x = 10,618.70 × 4,710.49
  4. Step 4: Simplify right side
    7,690.59x = 50,019,203.52
  5. Step 5: Solve for x
    x = 50,019,203.52/7,690.59
  6. Step 6: Final answer
    x = 6,503.95

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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.