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Finding the Fourth Proportional to 73,070.70, 100,827.45 and 40,801.38

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Solution

The fourth proportional to 73,070.70, 100,827.45 and 40,801.38 is: 56,300.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,070.70 : 100,827.45 = 40,801.38 : x
  2. Step 2: Convert to fraction form
    73,070.70/100,827.45 = 40,801.38/x
  3. Step 3: Cross multiply
    73,070.70x = 100,827.45 × 40,801.38
  4. Step 4: Simplify right side
    73,070.70x = 4,113,899,101.88
  5. Step 5: Solve for x
    x = 4,113,899,101.88/73,070.70
  6. Step 6: Final answer
    x = 56,300.26

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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.