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Finding the Fourth Proportional to 7,616.44, 10,510.76 and 4,472.68

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Solution

The fourth proportional to 7,616.44, 10,510.76 and 4,472.68 is: 6,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.44 : 10,510.76 = 4,472.68 : x
  2. Step 2: Convert to fraction form
    7,616.44/10,510.76 = 4,472.68/x
  3. Step 3: Cross multiply
    7,616.44x = 10,510.76 × 4,472.68
  4. Step 4: Simplify right side
    7,616.44x = 47,011,266.04
  5. Step 5: Solve for x
    x = 47,011,266.04/7,616.44
  6. Step 6: Final answer
    x = 6,172.34

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Half scale
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Double scale
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Similar ratio
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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.