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Finding the Fourth Proportional to 44,065.80, 66,108.96 and 12,903.48

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Solution

The fourth proportional to 44,065.80, 66,108.96 and 12,903.48 is: 19,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,065.80 : 66,108.96 = 12,903.48 : x
  2. Step 2: Convert to fraction form
    44,065.80/66,108.96 = 12,903.48/x
  3. Step 3: Cross multiply
    44,065.80x = 66,108.96 × 12,903.48
  4. Step 4: Simplify right side
    44,065.80x = 853,035,643.18
  5. Step 5: Solve for x
    x = 853,035,643.18/44,065.80
  6. Step 6: Final answer
    x = 19,358.22

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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.