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Finding the Fourth Proportional to 21,995.04, 32,984.35 and 8,842.97

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Solution

The fourth proportional to 21,995.04, 32,984.35 and 8,842.97 is: 13,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.04 : 32,984.35 = 8,842.97 : x
  2. Step 2: Convert to fraction form
    21,995.04/32,984.35 = 8,842.97/x
  3. Step 3: Cross multiply
    21,995.04x = 32,984.35 × 8,842.97
  4. Step 4: Simplify right side
    21,995.04x = 291,679,677.87
  5. Step 5: Solve for x
    x = 291,679,677.87/21,995.04
  6. Step 6: Final answer
    x = 13,261.15

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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.