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Finding the Fourth Proportional to 9,953.58, 13,732.53 and 5,646.20

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Solution

The fourth proportional to 9,953.58, 13,732.53 and 5,646.20 is: 7,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.58 : 13,732.53 = 5,646.20 : x
  2. Step 2: Convert to fraction form
    9,953.58/13,732.53 = 5,646.20/x
  3. Step 3: Cross multiply
    9,953.58x = 13,732.53 × 5,646.20
  4. Step 4: Simplify right side
    9,953.58x = 77,536,542.22
  5. Step 5: Solve for x
    x = 77,536,542.22/9,953.58
  6. Step 6: Final answer
    x = 7,789.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.