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Finding the Fourth Proportional to 9,744.40, 14,623.80 and 6,456.40

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Solution

The fourth proportional to 9,744.40, 14,623.80 and 6,456.40 is: 9,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,744.40 : 14,623.80 = 6,456.40 : x
  2. Step 2: Convert to fraction form
    9,744.40/14,623.80 = 6,456.40/x
  3. Step 3: Cross multiply
    9,744.40x = 14,623.80 × 6,456.40
  4. Step 4: Simplify right side
    9,744.40x = 94,417,102.32
  5. Step 5: Solve for x
    x = 94,417,102.32/9,744.40
  6. Step 6: Final answer
    x = 9,689.37

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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.