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Finding the Fourth Proportional to 34,359.50, 47,416.12 and 19,455.50

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Solution

The fourth proportional to 34,359.50, 47,416.12 and 19,455.50 is: 26,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,359.50 : 47,416.12 = 19,455.50 : x
  2. Step 2: Convert to fraction form
    34,359.50/47,416.12 = 19,455.50/x
  3. Step 3: Cross multiply
    34,359.50x = 47,416.12 × 19,455.50
  4. Step 4: Simplify right side
    34,359.50x = 922,504,322.66
  5. Step 5: Solve for x
    x = 922,504,322.66/34,359.50
  6. Step 6: Final answer
    x = 26,848.60

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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.