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Finding the Fourth Proportional to 5,463.47, 7,539.59 and 2,979.47

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Solution

The fourth proportional to 5,463.47, 7,539.59 and 2,979.47 is: 4,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,463.47 : 7,539.59 = 2,979.47 : x
  2. Step 2: Convert to fraction form
    5,463.47/7,539.59 = 2,979.47/x
  3. Step 3: Cross multiply
    5,463.47x = 7,539.59 × 2,979.47
  4. Step 4: Simplify right side
    5,463.47x = 22,463,986.17
  5. Step 5: Solve for x
    x = 22,463,986.17/5,463.47
  6. Step 6: Final answer
    x = 4,111.67

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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.