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Finding the Fourth Proportional to 18,058.95, 24,931.19 and 10,890.15

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Solution

The fourth proportional to 18,058.95, 24,931.19 and 10,890.15 is: 15,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,058.95 : 24,931.19 = 10,890.15 : x
  2. Step 2: Convert to fraction form
    18,058.95/24,931.19 = 10,890.15/x
  3. Step 3: Cross multiply
    18,058.95x = 24,931.19 × 10,890.15
  4. Step 4: Simplify right side
    18,058.95x = 271,504,332.51
  5. Step 5: Solve for x
    x = 271,504,332.51/18,058.95
  6. Step 6: Final answer
    x = 15,034.34

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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.