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Finding the Fourth Proportional to 12,637.52, 17,439.86 and 7,048.52

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Solution

The fourth proportional to 12,637.52, 17,439.86 and 7,048.52 is: 9,727.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.52 : 17,439.86 = 7,048.52 : x
  2. Step 2: Convert to fraction form
    12,637.52/17,439.86 = 7,048.52/x
  3. Step 3: Cross multiply
    12,637.52x = 17,439.86 × 7,048.52
  4. Step 4: Simplify right side
    12,637.52x = 122,925,202.01
  5. Step 5: Solve for x
    x = 122,925,202.01/12,637.52
  6. Step 6: Final answer
    x = 9,727.00

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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.