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Finding the Fourth Proportional to 14,335.92, 21,503.76 and 7,803.64

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Solution

The fourth proportional to 14,335.92, 21,503.76 and 7,803.64 is: 11,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,335.92 : 21,503.76 = 7,803.64 : x
  2. Step 2: Convert to fraction form
    14,335.92/21,503.76 = 7,803.64/x
  3. Step 3: Cross multiply
    14,335.92x = 21,503.76 × 7,803.64
  4. Step 4: Simplify right side
    14,335.92x = 167,807,601.69
  5. Step 5: Solve for x
    x = 167,807,601.69/14,335.92
  6. Step 6: Final answer
    x = 11,705.39

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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.