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Finding the Fourth Proportional to 7,165.95, 9,888.93 and 4,022.07

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Solution

The fourth proportional to 7,165.95, 9,888.93 and 4,022.07 is: 5,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.95 : 9,888.93 = 4,022.07 : x
  2. Step 2: Convert to fraction form
    7,165.95/9,888.93 = 4,022.07/x
  3. Step 3: Cross multiply
    7,165.95x = 9,888.93 × 4,022.07
  4. Step 4: Simplify right side
    7,165.95x = 39,773,968.69
  5. Step 5: Solve for x
    x = 39,773,968.69/7,165.95
  6. Step 6: Final answer
    x = 5,550.41

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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.