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Finding the Fourth Proportional to 21,695.04, 32,538.48 and 6,904.12

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Solution

The fourth proportional to 21,695.04, 32,538.48 and 6,904.12 is: 10,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.04 : 32,538.48 = 6,904.12 : x
  2. Step 2: Convert to fraction form
    21,695.04/32,538.48 = 6,904.12/x
  3. Step 3: Cross multiply
    21,695.04x = 32,538.48 × 6,904.12
  4. Step 4: Simplify right side
    21,695.04x = 224,649,570.54
  5. Step 5: Solve for x
    x = 224,649,570.54/21,695.04
  6. Step 6: Final answer
    x = 10,354.88

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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.