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Finding the Fourth Proportional to 73,480.32, 101,402.80 and 39,946.32

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Solution

The fourth proportional to 73,480.32, 101,402.80 and 39,946.32 is: 55,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,480.32 : 101,402.80 = 39,946.32 : x
  2. Step 2: Convert to fraction form
    73,480.32/101,402.80 = 39,946.32/x
  3. Step 3: Cross multiply
    73,480.32x = 101,402.80 × 39,946.32
  4. Step 4: Simplify right side
    73,480.32x = 4,050,668,697.70
  5. Step 5: Solve for x
    x = 4,050,668,697.70/73,480.32
  6. Step 6: Final answer
    x = 55,125.90

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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.