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Finding the Fourth Proportional to 6,805.95, 9,392.21 and 3,973.11

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Solution

The fourth proportional to 6,805.95, 9,392.21 and 3,973.11 is: 5,482.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805.95 : 9,392.21 = 3,973.11 : x
  2. Step 2: Convert to fraction form
    6,805.95/9,392.21 = 3,973.11/x
  3. Step 3: Cross multiply
    6,805.95x = 9,392.21 × 3,973.11
  4. Step 4: Simplify right side
    6,805.95x = 37,316,263.61
  5. Step 5: Solve for x
    x = 37,316,263.61/6,805.95
  6. Step 6: Final answer
    x = 5,482.89

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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.