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Finding the Fourth Proportional to 61,946.60, 85,499.90 and 40,727.84

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Solution

The fourth proportional to 61,946.60, 85,499.90 and 40,727.84 is: 56,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,946.60 : 85,499.90 = 40,727.84 : x
  2. Step 2: Convert to fraction form
    61,946.60/85,499.90 = 40,727.84/x
  3. Step 3: Cross multiply
    61,946.60x = 85,499.90 × 40,727.84
  4. Step 4: Simplify right side
    61,946.60x = 3,482,225,616.08
  5. Step 5: Solve for x
    x = 3,482,225,616.08/61,946.60
  6. Step 6: Final answer
    x = 56,213.35

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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.