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Finding the Fourth Proportional to 61,881.04, 85,387.08 and 36,740.56

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Solution

The fourth proportional to 61,881.04, 85,387.08 and 36,740.56 is: 50,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.04 : 85,387.08 = 36,740.56 : x
  2. Step 2: Convert to fraction form
    61,881.04/85,387.08 = 36,740.56/x
  3. Step 3: Cross multiply
    61,881.04x = 85,387.08 × 36,740.56
  4. Step 4: Simplify right side
    61,881.04x = 3,137,169,135.96
  5. Step 5: Solve for x
    x = 3,137,169,135.96/61,881.04
  6. Step 6: Final answer
    x = 50,696.77

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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.