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Finding the Fourth Proportional to 7,008.40, 9,672.42 and 4,024.36

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Solution

The fourth proportional to 7,008.40, 9,672.42 and 4,024.36 is: 5,554.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.40 : 9,672.42 = 4,024.36 : x
  2. Step 2: Convert to fraction form
    7,008.40/9,672.42 = 4,024.36/x
  3. Step 3: Cross multiply
    7,008.40x = 9,672.42 × 4,024.36
  4. Step 4: Simplify right side
    7,008.40x = 38,925,300.15
  5. Step 5: Solve for x
    x = 38,925,300.15/7,008.40
  6. Step 6: Final answer
    x = 5,554.09

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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.