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Finding the Fourth Proportional to 72,349.96, 99,846.12 and 45,482.28

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Solution

The fourth proportional to 72,349.96, 99,846.12 and 45,482.28 is: 62,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,349.96 : 99,846.12 = 45,482.28 : x
  2. Step 2: Convert to fraction form
    72,349.96/99,846.12 = 45,482.28/x
  3. Step 3: Cross multiply
    72,349.96x = 99,846.12 × 45,482.28
  4. Step 4: Simplify right side
    72,349.96x = 4,541,229,186.75
  5. Step 5: Solve for x
    x = 4,541,229,186.75/72,349.96
  6. Step 6: Final answer
    x = 62,767.54

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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.