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Finding the Fourth Proportional to 14,005.73, 19,328.00 and 7,718.11

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Solution

The fourth proportional to 14,005.73, 19,328.00 and 7,718.11 is: 10,651.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.73 : 19,328.00 = 7,718.11 : x
  2. Step 2: Convert to fraction form
    14,005.73/19,328.00 = 7,718.11/x
  3. Step 3: Cross multiply
    14,005.73x = 19,328.00 × 7,718.11
  4. Step 4: Simplify right side
    14,005.73x = 149,175,543.17
  5. Step 5: Solve for x
    x = 149,175,543.17/14,005.73
  6. Step 6: Final answer
    x = 10,651.03

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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.