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Finding the Fourth Proportional to 60,514.90, 83,893.32 and 57,315.80

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Solution

The fourth proportional to 60,514.90, 83,893.32 and 57,315.80 is: 79,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,514.90 : 83,893.32 = 57,315.80 : x
  2. Step 2: Convert to fraction form
    60,514.90/83,893.32 = 57,315.80/x
  3. Step 3: Cross multiply
    60,514.90x = 83,893.32 × 57,315.80
  4. Step 4: Simplify right side
    60,514.90x = 4,808,412,960.19
  5. Step 5: Solve for x
    x = 4,808,412,960.19/60,514.90
  6. Step 6: Final answer
    x = 79,458.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.