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Finding the Fourth Proportional to 28,332.98, 42,498.99 and 9,864.50

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Solution

The fourth proportional to 28,332.98, 42,498.99 and 9,864.50 is: 14,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.98 : 42,498.99 = 9,864.50 : x
  2. Step 2: Convert to fraction form
    28,332.98/42,498.99 = 9,864.50/x
  3. Step 3: Cross multiply
    28,332.98x = 42,498.99 × 9,864.50
  4. Step 4: Simplify right side
    28,332.98x = 419,231,286.86
  5. Step 5: Solve for x
    x = 419,231,286.86/28,332.98
  6. Step 6: Final answer
    x = 14,796.58

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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.