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Finding the Fourth Proportional to 20,693.32, 31,030.88 and 5,898.88

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Solution

The fourth proportional to 20,693.32, 31,030.88 and 5,898.88 is: 8,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.32 : 31,030.88 = 5,898.88 : x
  2. Step 2: Convert to fraction form
    20,693.32/31,030.88 = 5,898.88/x
  3. Step 3: Cross multiply
    20,693.32x = 31,030.88 × 5,898.88
  4. Step 4: Simplify right side
    20,693.32x = 183,047,437.41
  5. Step 5: Solve for x
    x = 183,047,437.41/20,693.32
  6. Step 6: Final answer
    x = 8,845.73

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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.