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Finding the Fourth Proportional to 14,417.95, 19,891.45 and 8,447.44

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Solution

The fourth proportional to 14,417.95, 19,891.45 and 8,447.44 is: 11,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,417.95 : 19,891.45 = 8,447.44 : x
  2. Step 2: Convert to fraction form
    14,417.95/19,891.45 = 8,447.44/x
  3. Step 3: Cross multiply
    14,417.95x = 19,891.45 × 8,447.44
  4. Step 4: Simplify right side
    14,417.95x = 168,031,804.76
  5. Step 5: Solve for x
    x = 168,031,804.76/14,417.95
  6. Step 6: Final answer
    x = 11,654.35

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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.