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Finding the Fourth Proportional to 56,523.72, 77,960.70 and 39,528.84

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Solution

The fourth proportional to 56,523.72, 77,960.70 and 39,528.84 is: 54,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,523.72 : 77,960.70 = 39,528.84 : x
  2. Step 2: Convert to fraction form
    56,523.72/77,960.70 = 39,528.84/x
  3. Step 3: Cross multiply
    56,523.72x = 77,960.70 × 39,528.84
  4. Step 4: Simplify right side
    56,523.72x = 3,081,696,036.59
  5. Step 5: Solve for x
    x = 3,081,696,036.59/56,523.72
  6. Step 6: Final answer
    x = 54,520.40

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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.