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Finding the Fourth Proportional to 8,770.74, 13,130.19 and 5,803.62

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Solution

The fourth proportional to 8,770.74, 13,130.19 and 5,803.62 is: 8,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.74 : 13,130.19 = 5,803.62 : x
  2. Step 2: Convert to fraction form
    8,770.74/13,130.19 = 5,803.62/x
  3. Step 3: Cross multiply
    8,770.74x = 13,130.19 × 5,803.62
  4. Step 4: Simplify right side
    8,770.74x = 76,202,633.29
  5. Step 5: Solve for x
    x = 76,202,633.29/8,770.74
  6. Step 6: Final answer
    x = 8,688.28

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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.