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Finding the Fourth Proportional to 5,482.62, 7,564.16 and 3,123.08

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Solution

The fourth proportional to 5,482.62, 7,564.16 and 3,123.08 is: 4,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,482.62 : 7,564.16 = 3,123.08 : x
  2. Step 2: Convert to fraction form
    5,482.62/7,564.16 = 3,123.08/x
  3. Step 3: Cross multiply
    5,482.62x = 7,564.16 × 3,123.08
  4. Step 4: Simplify right side
    5,482.62x = 23,623,476.81
  5. Step 5: Solve for x
    x = 23,623,476.81/5,482.62
  6. Step 6: Final answer
    x = 4,308.79

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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.