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Finding the Fourth Proportional to 7,332.80, 10,119.60 and 4,350.40

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Solution

The fourth proportional to 7,332.80, 10,119.60 and 4,350.40 is: 6,003.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.80 : 10,119.60 = 4,350.40 : x
  2. Step 2: Convert to fraction form
    7,332.80/10,119.60 = 4,350.40/x
  3. Step 3: Cross multiply
    7,332.80x = 10,119.60 × 4,350.40
  4. Step 4: Simplify right side
    7,332.80x = 44,024,307.84
  5. Step 5: Solve for x
    x = 44,024,307.84/7,332.80
  6. Step 6: Final answer
    x = 6,003.75

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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.