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Finding the Fourth Proportional to 45,695.40, 68,547.90 and 14,523.40

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Solution

The fourth proportional to 45,695.40, 68,547.90 and 14,523.40 is: 21,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,695.40 : 68,547.90 = 14,523.40 : x
  2. Step 2: Convert to fraction form
    45,695.40/68,547.90 = 14,523.40/x
  3. Step 3: Cross multiply
    45,695.40x = 68,547.90 × 14,523.40
  4. Step 4: Simplify right side
    45,695.40x = 995,548,570.86
  5. Step 5: Solve for x
    x = 995,548,570.86/45,695.40
  6. Step 6: Final answer
    x = 21,786.63

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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.