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Finding the Fourth Proportional to 19,599.65, 27,058.74 and 12,904.74

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Solution

The fourth proportional to 19,599.65, 27,058.74 and 12,904.74 is: 17,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,599.65 : 27,058.74 = 12,904.74 : x
  2. Step 2: Convert to fraction form
    19,599.65/27,058.74 = 12,904.74/x
  3. Step 3: Cross multiply
    19,599.65x = 27,058.74 × 12,904.74
  4. Step 4: Simplify right side
    19,599.65x = 349,186,004.43
  5. Step 5: Solve for x
    x = 349,186,004.43/19,599.65
  6. Step 6: Final answer
    x = 17,815.93

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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.