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Finding the Fourth Proportional to 19,425.85, 26,807.01 and 10,928.14

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Solution

The fourth proportional to 19,425.85, 26,807.01 and 10,928.14 is: 15,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.85 : 26,807.01 = 10,928.14 : x
  2. Step 2: Convert to fraction form
    19,425.85/26,807.01 = 10,928.14/x
  3. Step 3: Cross multiply
    19,425.85x = 26,807.01 × 10,928.14
  4. Step 4: Simplify right side
    19,425.85x = 292,950,758.26
  5. Step 5: Solve for x
    x = 292,950,758.26/19,425.85
  6. Step 6: Final answer
    x = 15,080.46

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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.