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Finding the Fourth Proportional to 68,412.80, 94,448.90 and 52,152.44

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Solution

The fourth proportional to 68,412.80, 94,448.90 and 52,152.44 is: 72,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.80 : 94,448.90 = 52,152.44 : x
  2. Step 2: Convert to fraction form
    68,412.80/94,448.90 = 52,152.44/x
  3. Step 3: Cross multiply
    68,412.80x = 94,448.90 × 52,152.44
  4. Step 4: Simplify right side
    68,412.80x = 4,925,740,590.32
  5. Step 5: Solve for x
    x = 4,925,740,590.32/68,412.80
  6. Step 6: Final answer
    x = 72,000.28

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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.