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Finding the Fourth Proportional to 17,374.40, 23,970.80 and 11,090.40

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Solution

The fourth proportional to 17,374.40, 23,970.80 and 11,090.40 is: 15,301.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,374.40 : 23,970.80 = 11,090.40 : x
  2. Step 2: Convert to fraction form
    17,374.40/23,970.80 = 11,090.40/x
  3. Step 3: Cross multiply
    17,374.40x = 23,970.80 × 11,090.40
  4. Step 4: Simplify right side
    17,374.40x = 265,845,760.32
  5. Step 5: Solve for x
    x = 265,845,760.32/17,374.40
  6. Step 6: Final answer
    x = 15,301.00

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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.