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Finding the Fourth Proportional to 15,767.58, 21,760.58 and 9,054.52

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Solution

The fourth proportional to 15,767.58, 21,760.58 and 9,054.52 is: 12,496.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.58 : 21,760.58 = 9,054.52 : x
  2. Step 2: Convert to fraction form
    15,767.58/21,760.58 = 9,054.52/x
  3. Step 3: Cross multiply
    15,767.58x = 21,760.58 × 9,054.52
  4. Step 4: Simplify right side
    15,767.58x = 197,031,606.82
  5. Step 5: Solve for x
    x = 197,031,606.82/15,767.58
  6. Step 6: Final answer
    x = 12,496.00

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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.