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Finding the Fourth Proportional to 36,430.40, 51,119.20 and 36,430.40

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Solution

The fourth proportional to 36,430.40, 51,119.20 and 36,430.40 is: 51,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,430.40 : 51,119.20 = 36,430.40 : x
  2. Step 2: Convert to fraction form
    36,430.40/51,119.20 = 36,430.40/x
  3. Step 3: Cross multiply
    36,430.40x = 51,119.20 × 36,430.40
  4. Step 4: Simplify right side
    36,430.40x = 1,862,292,903.68
  5. Step 5: Solve for x
    x = 1,862,292,903.68/36,430.40
  6. Step 6: Final answer
    x = 51,119.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.