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Finding the Fourth Proportional to 19,595.59, 27,042.20 and 10,643.11

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Solution

The fourth proportional to 19,595.59, 27,042.20 and 10,643.11 is: 14,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,595.59 : 27,042.20 = 10,643.11 : x
  2. Step 2: Convert to fraction form
    19,595.59/27,042.20 = 10,643.11/x
  3. Step 3: Cross multiply
    19,595.59x = 27,042.20 × 10,643.11
  4. Step 4: Simplify right side
    19,595.59x = 287,813,056.03
  5. Step 5: Solve for x
    x = 287,813,056.03/19,595.59
  6. Step 6: Final answer
    x = 14,687.64

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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.