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Finding the Fourth Proportional to 17,762.40, 26,655.36 and 7,374.16

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Solution

The fourth proportional to 17,762.40, 26,655.36 and 7,374.16 is: 11,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,762.40 : 26,655.36 = 7,374.16 : x
  2. Step 2: Convert to fraction form
    17,762.40/26,655.36 = 7,374.16/x
  3. Step 3: Cross multiply
    17,762.40x = 26,655.36 × 7,374.16
  4. Step 4: Simplify right side
    17,762.40x = 196,560,889.50
  5. Step 5: Solve for x
    x = 196,560,889.50/17,762.40
  6. Step 6: Final answer
    x = 11,066.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.