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Finding the Fourth Proportional to 53,313.92, 79,947.48 and 28,347.92

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Solution

The fourth proportional to 53,313.92, 79,947.48 and 28,347.92 is: 42,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,313.92 : 79,947.48 = 28,347.92 : x
  2. Step 2: Convert to fraction form
    53,313.92/79,947.48 = 28,347.92/x
  3. Step 3: Cross multiply
    53,313.92x = 79,947.48 × 28,347.92
  4. Step 4: Simplify right side
    53,313.92x = 2,266,344,767.24
  5. Step 5: Solve for x
    x = 2,266,344,767.24/53,313.92
  6. Step 6: Final answer
    x = 42,509.44

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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.