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Finding the Fourth Proportional to 20,058.61, 30,117.08 and 14,809.81

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Solution

The fourth proportional to 20,058.61, 30,117.08 and 14,809.81 is: 22,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.61 : 30,117.08 = 14,809.81 : x
  2. Step 2: Convert to fraction form
    20,058.61/30,117.08 = 14,809.81/x
  3. Step 3: Cross multiply
    20,058.61x = 30,117.08 × 14,809.81
  4. Step 4: Simplify right side
    20,058.61x = 446,028,232.55
  5. Step 5: Solve for x
    x = 446,028,232.55/20,058.61
  6. Step 6: Final answer
    x = 22,236.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.