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Finding the Fourth Proportional to 7,484.10, 10,328 and 4,126.92

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Solution

The fourth proportional to 7,484.10, 10,328 and 4,126.92 is: 5,695.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.10 : 10,328 = 4,126.92 : x
  2. Step 2: Convert to fraction form
    7,484.10/10,328 = 4,126.92/x
  3. Step 3: Cross multiply
    7,484.10x = 10,328 × 4,126.92
  4. Step 4: Simplify right side
    7,484.10x = 42,622,829.76
  5. Step 5: Solve for x
    x = 42,622,829.76/7,484.10
  6. Step 6: Final answer
    x = 5,695.12

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Double scale
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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.