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Finding the Fourth Proportional to 7,220.13, 10,829.46 and 4,895.08

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Solution

The fourth proportional to 7,220.13, 10,829.46 and 4,895.08 is: 7,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.13 : 10,829.46 = 4,895.08 : x
  2. Step 2: Convert to fraction form
    7,220.13/10,829.46 = 4,895.08/x
  3. Step 3: Cross multiply
    7,220.13x = 10,829.46 × 4,895.08
  4. Step 4: Simplify right side
    7,220.13x = 53,011,045.98
  5. Step 5: Solve for x
    x = 53,011,045.98/7,220.13
  6. Step 6: Final answer
    x = 7,342.12

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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.