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Finding the Fourth Proportional to 9,809.71, 13,537.12 and 5,561.16

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Solution

The fourth proportional to 9,809.71, 13,537.12 and 5,561.16 is: 7,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,809.71 : 13,537.12 = 5,561.16 : x
  2. Step 2: Convert to fraction form
    9,809.71/13,537.12 = 5,561.16/x
  3. Step 3: Cross multiply
    9,809.71x = 13,537.12 × 5,561.16
  4. Step 4: Simplify right side
    9,809.71x = 75,282,090.26
  5. Step 5: Solve for x
    x = 75,282,090.26/9,809.71
  6. Step 6: Final answer
    x = 7,674.24

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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.