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Finding the Fourth Proportional to 61,841.84, 85,386.12 and 38,000.48

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Solution

The fourth proportional to 61,841.84, 85,386.12 and 38,000.48 is: 52,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,841.84 : 85,386.12 = 38,000.48 : x
  2. Step 2: Convert to fraction form
    61,841.84/85,386.12 = 38,000.48/x
  3. Step 3: Cross multiply
    61,841.84x = 85,386.12 × 38,000.48
  4. Step 4: Simplify right side
    61,841.84x = 3,244,713,545.34
  5. Step 5: Solve for x
    x = 3,244,713,545.34/61,841.84
  6. Step 6: Final answer
    x = 52,467.93

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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.