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Finding the Fourth Proportional to 9,963.55, 14,945.28 and 4,753.63

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Solution

The fourth proportional to 9,963.55, 14,945.28 and 4,753.63 is: 7,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.55 : 14,945.28 = 4,753.63 : x
  2. Step 2: Convert to fraction form
    9,963.55/14,945.28 = 4,753.63/x
  3. Step 3: Cross multiply
    9,963.55x = 14,945.28 × 4,753.63
  4. Step 4: Simplify right side
    9,963.55x = 71,044,331.37
  5. Step 5: Solve for x
    x = 71,044,331.37/9,963.55
  6. Step 6: Final answer
    x = 7,130.42

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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.