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Finding the Fourth Proportional to 53,262.68, 79,488.98 and 47,357.96

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Solution

The fourth proportional to 53,262.68, 79,488.98 and 47,357.96 is: 70,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,262.68 : 79,488.98 = 47,357.96 : x
  2. Step 2: Convert to fraction form
    53,262.68/79,488.98 = 47,357.96/x
  3. Step 3: Cross multiply
    53,262.68x = 79,488.98 × 47,357.96
  4. Step 4: Simplify right side
    53,262.68x = 3,764,435,935.28
  5. Step 5: Solve for x
    x = 3,764,435,935.28/53,262.68
  6. Step 6: Final answer
    x = 70,676.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.