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Finding the Fourth Proportional to 9,703.13, 13,390.44 and 5,453.94

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Solution

The fourth proportional to 9,703.13, 13,390.44 and 5,453.94 is: 7,526.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.13 : 13,390.44 = 5,453.94 : x
  2. Step 2: Convert to fraction form
    9,703.13/13,390.44 = 5,453.94/x
  3. Step 3: Cross multiply
    9,703.13x = 13,390.44 × 5,453.94
  4. Step 4: Simplify right side
    9,703.13x = 73,030,656.33
  5. Step 5: Solve for x
    x = 73,030,656.33/9,703.13
  6. Step 6: Final answer
    x = 7,526.50

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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.