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Finding the Fourth Proportional to 30,967.81, 46,473.59 and 12,248.48

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Solution

The fourth proportional to 30,967.81, 46,473.59 and 12,248.48 is: 18,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,967.81 : 46,473.59 = 12,248.48 : x
  2. Step 2: Convert to fraction form
    30,967.81/46,473.59 = 12,248.48/x
  3. Step 3: Cross multiply
    30,967.81x = 46,473.59 × 12,248.48
  4. Step 4: Simplify right side
    30,967.81x = 569,230,984.45
  5. Step 5: Solve for x
    x = 569,230,984.45/30,967.81
  6. Step 6: Final answer
    x = 18,381.38

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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.