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Finding the Fourth Proportional to 44,647.04, 66,979.36 and 13,484.16

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Solution

The fourth proportional to 44,647.04, 66,979.36 and 13,484.16 is: 20,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,647.04 : 66,979.36 = 13,484.16 : x
  2. Step 2: Convert to fraction form
    44,647.04/66,979.36 = 13,484.16/x
  3. Step 3: Cross multiply
    44,647.04x = 66,979.36 × 13,484.16
  4. Step 4: Simplify right side
    44,647.04x = 903,160,406.94
  5. Step 5: Solve for x
    x = 903,160,406.94/44,647.04
  6. Step 6: Final answer
    x = 20,228.90

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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.