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Finding the Fourth Proportional to 66,881.35, 92,298.02 and 37,807.40

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Solution

The fourth proportional to 66,881.35, 92,298.02 and 37,807.40 is: 52,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.35 : 92,298.02 = 37,807.40 : x
  2. Step 2: Convert to fraction form
    66,881.35/92,298.02 = 37,807.40/x
  3. Step 3: Cross multiply
    66,881.35x = 92,298.02 × 37,807.40
  4. Step 4: Simplify right side
    66,881.35x = 3,489,547,972.31
  5. Step 5: Solve for x
    x = 3,489,547,972.31/66,881.35
  6. Step 6: Final answer
    x = 52,175.21

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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.