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Finding the Fourth Proportional to 11,376.40, 17,032.20 and 7,002.40

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Solution

The fourth proportional to 11,376.40, 17,032.20 and 7,002.40 is: 10,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.40 : 17,032.20 = 7,002.40 : x
  2. Step 2: Convert to fraction form
    11,376.40/17,032.20 = 7,002.40/x
  3. Step 3: Cross multiply
    11,376.40x = 17,032.20 × 7,002.40
  4. Step 4: Simplify right side
    11,376.40x = 119,266,277.28
  5. Step 5: Solve for x
    x = 119,266,277.28/11,376.40
  6. Step 6: Final answer
    x = 10,483.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.