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Finding the Fourth Proportional to 67,675.86, 93,392.01 and 40,464.45

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Solution

The fourth proportional to 67,675.86, 93,392.01 and 40,464.45 is: 55,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,675.86 : 93,392.01 = 40,464.45 : x
  2. Step 2: Convert to fraction form
    67,675.86/93,392.01 = 40,464.45/x
  3. Step 3: Cross multiply
    67,675.86x = 93,392.01 × 40,464.45
  4. Step 4: Simplify right side
    67,675.86x = 3,779,056,319.04
  5. Step 5: Solve for x
    x = 3,779,056,319.04/67,675.86
  6. Step 6: Final answer
    x = 55,840.54

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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.