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Finding the Fourth Proportional to 70,017.43, 96,607.45 and 39,800.38

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Solution

The fourth proportional to 70,017.43, 96,607.45 and 39,800.38 is: 54,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,017.43 : 96,607.45 = 39,800.38 : x
  2. Step 2: Convert to fraction form
    70,017.43/96,607.45 = 39,800.38/x
  3. Step 3: Cross multiply
    70,017.43x = 96,607.45 × 39,800.38
  4. Step 4: Simplify right side
    70,017.43x = 3,845,013,220.83
  5. Step 5: Solve for x
    x = 3,845,013,220.83/70,017.43
  6. Step 6: Final answer
    x = 54,915.09

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Double scale
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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.