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Finding the Fourth Proportional to 17,008.40, 23,467.96 and 9,931.64

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Solution

The fourth proportional to 17,008.40, 23,467.96 and 9,931.64 is: 13,703.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,008.40 : 23,467.96 = 9,931.64 : x
  2. Step 2: Convert to fraction form
    17,008.40/23,467.96 = 9,931.64/x
  3. Step 3: Cross multiply
    17,008.40x = 23,467.96 × 9,931.64
  4. Step 4: Simplify right side
    17,008.40x = 233,075,330.25
  5. Step 5: Solve for x
    x = 233,075,330.25/17,008.40
  6. Step 6: Final answer
    x = 13,703.54

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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.