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Finding the Fourth Proportional to 9,777.47, 14,663.12 and 4,227.26

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Solution

The fourth proportional to 9,777.47, 14,663.12 and 4,227.26 is: 6,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,777.47 : 14,663.12 = 4,227.26 : x
  2. Step 2: Convert to fraction form
    9,777.47/14,663.12 = 4,227.26/x
  3. Step 3: Cross multiply
    9,777.47x = 14,663.12 × 4,227.26
  4. Step 4: Simplify right side
    9,777.47x = 61,984,726.20
  5. Step 5: Solve for x
    x = 61,984,726.20/9,777.47
  6. Step 6: Final answer
    x = 6,339.55

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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.