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Finding the Fourth Proportional to 45,543.42, 68,307.42 and 12,256.08

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Solution

The fourth proportional to 45,543.42, 68,307.42 and 12,256.08 is: 18,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,543.42 : 68,307.42 = 12,256.08 : x
  2. Step 2: Convert to fraction form
    45,543.42/68,307.42 = 12,256.08/x
  3. Step 3: Cross multiply
    45,543.42x = 68,307.42 × 12,256.08
  4. Step 4: Simplify right side
    45,543.42x = 837,181,204.11
  5. Step 5: Solve for x
    x = 837,181,204.11/45,543.42
  6. Step 6: Final answer
    x = 18,382.05

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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.