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Finding the Fourth Proportional to 7,616.62, 10,510.86 and 4,430.62

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Solution

The fourth proportional to 7,616.62, 10,510.86 and 4,430.62 is: 6,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.62 : 10,510.86 = 4,430.62 : x
  2. Step 2: Convert to fraction form
    7,616.62/10,510.86 = 4,430.62/x
  3. Step 3: Cross multiply
    7,616.62x = 10,510.86 × 4,430.62
  4. Step 4: Simplify right side
    7,616.62x = 46,569,626.53
  5. Step 5: Solve for x
    x = 46,569,626.53/7,616.62
  6. Step 6: Final answer
    x = 6,114.21

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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.