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Finding the Fourth Proportional to 57,530.24, 79,220.04 and 56,220.24

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Solution

The fourth proportional to 57,530.24, 79,220.04 and 56,220.24 is: 77,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,530.24 : 79,220.04 = 56,220.24 : x
  2. Step 2: Convert to fraction form
    57,530.24/79,220.04 = 56,220.24/x
  3. Step 3: Cross multiply
    57,530.24x = 79,220.04 × 56,220.24
  4. Step 4: Simplify right side
    57,530.24x = 4,453,769,661.61
  5. Step 5: Solve for x
    x = 4,453,769,661.61/57,530.24
  6. Step 6: Final answer
    x = 77,416.15

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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.