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Finding the Fourth Proportional to 8,370.47, 12,566.64 and 7,080.14

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Solution

The fourth proportional to 8,370.47, 12,566.64 and 7,080.14 is: 10,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.47 : 12,566.64 = 7,080.14 : x
  2. Step 2: Convert to fraction form
    8,370.47/12,566.64 = 7,080.14/x
  3. Step 3: Cross multiply
    8,370.47x = 12,566.64 × 7,080.14
  4. Step 4: Simplify right side
    8,370.47x = 88,973,570.53
  5. Step 5: Solve for x
    x = 88,973,570.53/8,370.47
  6. Step 6: Final answer
    x = 10,629.46

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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.