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Finding the Fourth Proportional to 5,424.94, 7,487.76 and 3,068.47

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Solution

The fourth proportional to 5,424.94, 7,487.76 and 3,068.47 is: 4,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.94 : 7,487.76 = 3,068.47 : x
  2. Step 2: Convert to fraction form
    5,424.94/7,487.76 = 3,068.47/x
  3. Step 3: Cross multiply
    5,424.94x = 7,487.76 × 3,068.47
  4. Step 4: Simplify right side
    5,424.94x = 22,975,966.93
  5. Step 5: Solve for x
    x = 22,975,966.93/5,424.94
  6. Step 6: Final answer
    x = 4,235.25

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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.