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Finding the Fourth Proportional to 7,074.64, 9,763.28 and 4,841.20

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Solution

The fourth proportional to 7,074.64, 9,763.28 and 4,841.20 is: 6,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.64 : 9,763.28 = 4,841.20 : x
  2. Step 2: Convert to fraction form
    7,074.64/9,763.28 = 4,841.20/x
  3. Step 3: Cross multiply
    7,074.64x = 9,763.28 × 4,841.20
  4. Step 4: Simplify right side
    7,074.64x = 47,265,991.14
  5. Step 5: Solve for x
    x = 47,265,991.14/7,074.64
  6. Step 6: Final answer
    x = 6,681.05

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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.