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Finding the Fourth Proportional to 7,813.76, 10,788.02 and 6,973.03

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Solution

The fourth proportional to 7,813.76, 10,788.02 and 6,973.03 is: 9,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.76 : 10,788.02 = 6,973.03 : x
  2. Step 2: Convert to fraction form
    7,813.76/10,788.02 = 6,973.03/x
  3. Step 3: Cross multiply
    7,813.76x = 10,788.02 × 6,973.03
  4. Step 4: Simplify right side
    7,813.76x = 75,225,177.56
  5. Step 5: Solve for x
    x = 75,225,177.56/7,813.76
  6. Step 6: Final answer
    x = 9,627.28

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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.