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Finding the Fourth Proportional to 7,603.66, 10,494.92 and 4,621.47

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Solution

The fourth proportional to 7,603.66, 10,494.92 and 4,621.47 is: 6,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.66 : 10,494.92 = 4,621.47 : x
  2. Step 2: Convert to fraction form
    7,603.66/10,494.92 = 4,621.47/x
  3. Step 3: Cross multiply
    7,603.66x = 10,494.92 × 4,621.47
  4. Step 4: Simplify right side
    7,603.66x = 48,501,963.17
  5. Step 5: Solve for x
    x = 48,501,963.17/7,603.66
  6. Step 6: Final answer
    x = 6,378.77

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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.