Home / 66,206.25-99,309.38-19,459.13

Finding the Fourth Proportional to 66,206.25, 99,309.38 and 19,459.13

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Solution

The fourth proportional to 66,206.25, 99,309.38 and 19,459.13 is: 29,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,206.25 : 99,309.38 = 19,459.13 : x
  2. Step 2: Convert to fraction form
    66,206.25/99,309.38 = 19,459.13/x
  3. Step 3: Cross multiply
    66,206.25x = 99,309.38 × 19,459.13
  4. Step 4: Simplify right side
    66,206.25x = 1,932,473,541.80
  5. Step 5: Solve for x
    x = 1,932,473,541.80/66,206.25
  6. Step 6: Final answer
    x = 29,188.69

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Similar ratio
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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.