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Finding the Fourth Proportional to 14,368.89, 19,829.31 and 7,995.99

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Solution

The fourth proportional to 14,368.89, 19,829.31 and 7,995.99 is: 11,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.89 : 19,829.31 = 7,995.99 : x
  2. Step 2: Convert to fraction form
    14,368.89/19,829.31 = 7,995.99/x
  3. Step 3: Cross multiply
    14,368.89x = 19,829.31 × 7,995.99
  4. Step 4: Simplify right side
    14,368.89x = 158,554,964.47
  5. Step 5: Solve for x
    x = 158,554,964.47/14,368.89
  6. Step 6: Final answer
    x = 11,034.60

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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.