Home / 7,622.02-10,515.42-4,788.18

Finding the Fourth Proportional to 7,622.02, 10,515.42 and 4,788.18

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Solution

The fourth proportional to 7,622.02, 10,515.42 and 4,788.18 is: 6,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.02 : 10,515.42 = 4,788.18 : x
  2. Step 2: Convert to fraction form
    7,622.02/10,515.42 = 4,788.18/x
  3. Step 3: Cross multiply
    7,622.02x = 10,515.42 × 4,788.18
  4. Step 4: Simplify right side
    7,622.02x = 50,349,723.74
  5. Step 5: Solve for x
    x = 50,349,723.74/7,622.02
  6. Step 6: Final answer
    x = 6,605.82

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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.