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Finding the Fourth Proportional to 28,335.56, 42,501.18 and 9,867.56

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Solution

The fourth proportional to 28,335.56, 42,501.18 and 9,867.56 is: 14,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.56 : 42,501.18 = 9,867.56 : x
  2. Step 2: Convert to fraction form
    28,335.56/42,501.18 = 9,867.56/x
  3. Step 3: Cross multiply
    28,335.56x = 42,501.18 × 9,867.56
  4. Step 4: Simplify right side
    28,335.56x = 419,382,943.72
  5. Step 5: Solve for x
    x = 419,382,943.72/28,335.56
  6. Step 6: Final answer
    x = 14,800.59

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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.