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Finding the Fourth Proportional to 9,637.80, 14,424.30 and 6,721.80

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Solution

The fourth proportional to 9,637.80, 14,424.30 and 6,721.80 is: 10,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,637.80 : 14,424.30 = 6,721.80 : x
  2. Step 2: Convert to fraction form
    9,637.80/14,424.30 = 6,721.80/x
  3. Step 3: Cross multiply
    9,637.80x = 14,424.30 × 6,721.80
  4. Step 4: Simplify right side
    9,637.80x = 96,957,259.74
  5. Step 5: Solve for x
    x = 96,957,259.74/9,637.80
  6. Step 6: Final answer
    x = 10,060.10

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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.