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Finding the Fourth Proportional to 45,665.64, 68,489.82 and 14,501.16

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Solution

The fourth proportional to 45,665.64, 68,489.82 and 14,501.16 is: 21,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.64 : 68,489.82 = 14,501.16 : x
  2. Step 2: Convert to fraction form
    45,665.64/68,489.82 = 14,501.16/x
  3. Step 3: Cross multiply
    45,665.64x = 68,489.82 × 14,501.16
  4. Step 4: Simplify right side
    45,665.64x = 993,181,838.19
  5. Step 5: Solve for x
    x = 993,181,838.19/45,665.64
  6. Step 6: Final answer
    x = 21,749.00

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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.