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Finding the Fourth Proportional to 53,235.88, 79,678.84 and 47,403.88

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Solution

The fourth proportional to 53,235.88, 79,678.84 and 47,403.88 is: 70,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,235.88 : 79,678.84 = 47,403.88 : x
  2. Step 2: Convert to fraction form
    53,235.88/79,678.84 = 47,403.88/x
  3. Step 3: Cross multiply
    53,235.88x = 79,678.84 × 47,403.88
  4. Step 4: Simplify right side
    53,235.88x = 3,777,086,169.90
  5. Step 5: Solve for x
    x = 3,777,086,169.90/53,235.88
  6. Step 6: Final answer
    x = 70,950.01

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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.