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Finding the Fourth Proportional to 67,693.32, 101,556.18 and 20,946.20

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Solution

The fourth proportional to 67,693.32, 101,556.18 and 20,946.20 is: 31,424.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,693.32 : 101,556.18 = 20,946.20 : x
  2. Step 2: Convert to fraction form
    67,693.32/101,556.18 = 20,946.20/x
  3. Step 3: Cross multiply
    67,693.32x = 101,556.18 × 20,946.20
  4. Step 4: Simplify right side
    67,693.32x = 2,127,215,549.74
  5. Step 5: Solve for x
    x = 2,127,215,549.74/67,693.32
  6. Step 6: Final answer
    x = 31,424.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.