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Finding the Fourth Proportional to 18,117.60, 24,931.44 and 16,026.72

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Solution

The fourth proportional to 18,117.60, 24,931.44 and 16,026.72 is: 22,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.60 : 24,931.44 = 16,026.72 : x
  2. Step 2: Convert to fraction form
    18,117.60/24,931.44 = 16,026.72/x
  3. Step 3: Cross multiply
    18,117.60x = 24,931.44 × 16,026.72
  4. Step 4: Simplify right side
    18,117.60x = 399,569,208.08
  5. Step 5: Solve for x
    x = 399,569,208.08/18,117.60
  6. Step 6: Final answer
    x = 22,054.20

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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.