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Finding the Fourth Proportional to 61,688.66, 85,125.22 and 36,192.35

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Solution

The fourth proportional to 61,688.66, 85,125.22 and 36,192.35 is: 49,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688.66 : 85,125.22 = 36,192.35 : x
  2. Step 2: Convert to fraction form
    61,688.66/85,125.22 = 36,192.35/x
  3. Step 3: Cross multiply
    61,688.66x = 85,125.22 × 36,192.35
  4. Step 4: Simplify right side
    61,688.66x = 3,080,881,878.40
  5. Step 5: Solve for x
    x = 3,080,881,878.40/61,688.66
  6. Step 6: Final answer
    x = 49,942.44

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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.