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Finding the Fourth Proportional to 46,739.61, 70,109.60 and 11,679.30

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Solution

The fourth proportional to 46,739.61, 70,109.60 and 11,679.30 is: 17,518.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,739.61 : 70,109.60 = 11,679.30 : x
  2. Step 2: Convert to fraction form
    46,739.61/70,109.60 = 11,679.30/x
  3. Step 3: Cross multiply
    46,739.61x = 70,109.60 × 11,679.30
  4. Step 4: Simplify right side
    46,739.61x = 818,830,992.88
  5. Step 5: Solve for x
    x = 818,830,992.88/46,739.61
  6. Step 6: Final answer
    x = 17,518.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.