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Finding the Fourth Proportional to 58,225.64, 80,381.94 and 39,205.40

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Solution

The fourth proportional to 58,225.64, 80,381.94 and 39,205.40 is: 54,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,225.64 : 80,381.94 = 39,205.40 : x
  2. Step 2: Convert to fraction form
    58,225.64/80,381.94 = 39,205.40/x
  3. Step 3: Cross multiply
    58,225.64x = 80,381.94 × 39,205.40
  4. Step 4: Simplify right side
    58,225.64x = 3,151,406,110.48
  5. Step 5: Solve for x
    x = 3,151,406,110.48/58,225.64
  6. Step 6: Final answer
    x = 54,124.03

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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.