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Finding the Fourth Proportional to 18,952.17, 28,425.62 and 6,472.17

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Solution

The fourth proportional to 18,952.17, 28,425.62 and 6,472.17 is: 9,707.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.17 : 28,425.62 = 6,472.17 : x
  2. Step 2: Convert to fraction form
    18,952.17/28,425.62 = 6,472.17/x
  3. Step 3: Cross multiply
    18,952.17x = 28,425.62 × 6,472.17
  4. Step 4: Simplify right side
    18,952.17x = 183,975,412.63
  5. Step 5: Solve for x
    x = 183,975,412.63/18,952.17
  6. Step 6: Final answer
    x = 9,707.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.