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Finding the Fourth Proportional to 38,127.20, 53,274.40 and 38,127.20

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Solution

The fourth proportional to 38,127.20, 53,274.40 and 38,127.20 is: 53,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,127.20 : 53,274.40 = 38,127.20 : x
  2. Step 2: Convert to fraction form
    38,127.20/53,274.40 = 38,127.20/x
  3. Step 3: Cross multiply
    38,127.20x = 53,274.40 × 38,127.20
  4. Step 4: Simplify right side
    38,127.20x = 2,031,203,703.68
  5. Step 5: Solve for x
    x = 2,031,203,703.68/38,127.20
  6. Step 6: Final answer
    x = 53,274.40

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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.