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Finding the Fourth Proportional to 5,362.76, 7,400.04 and 3,126.08

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Solution

The fourth proportional to 5,362.76, 7,400.04 and 3,126.08 is: 4,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.76 : 7,400.04 = 3,126.08 : x
  2. Step 2: Convert to fraction form
    5,362.76/7,400.04 = 3,126.08/x
  3. Step 3: Cross multiply
    5,362.76x = 7,400.04 × 3,126.08
  4. Step 4: Simplify right side
    5,362.76x = 23,133,117.04
  5. Step 5: Solve for x
    x = 23,133,117.04/5,362.76
  6. Step 6: Final answer
    x = 4,313.66

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Half 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.