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Finding the Fourth Proportional to 7,041.80, 10,565.72 and 3,346.64

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Solution

The fourth proportional to 7,041.80, 10,565.72 and 3,346.64 is: 5,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.80 : 10,565.72 = 3,346.64 : x
  2. Step 2: Convert to fraction form
    7,041.80/10,565.72 = 3,346.64/x
  3. Step 3: Cross multiply
    7,041.80x = 10,565.72 × 3,346.64
  4. Step 4: Simplify right side
    7,041.80x = 35,359,661.18
  5. Step 5: Solve for x
    x = 35,359,661.18/7,041.80
  6. Step 6: Final answer
    x = 5,021.40

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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.