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Finding the Fourth Proportional to 19,605.71, 27,056.00 and 10,653.21

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Solution

The fourth proportional to 19,605.71, 27,056.00 and 10,653.21 is: 14,701.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.71 : 27,056.00 = 10,653.21 : x
  2. Step 2: Convert to fraction form
    19,605.71/27,056.00 = 10,653.21/x
  3. Step 3: Cross multiply
    19,605.71x = 27,056.00 × 10,653.21
  4. Step 4: Simplify right side
    19,605.71x = 288,233,337.90
  5. Step 5: Solve for x
    x = 288,233,337.90/19,605.71
  6. Step 6: Final answer
    x = 14,701.50

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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.