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Finding the Fourth Proportional to 38,020.20, 53,124.60 and 38,020.20

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Solution

The fourth proportional to 38,020.20, 53,124.60 and 38,020.20 is: 53,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,020.20 : 53,124.60 = 38,020.20 : x
  2. Step 2: Convert to fraction form
    38,020.20/53,124.60 = 38,020.20/x
  3. Step 3: Cross multiply
    38,020.20x = 53,124.60 × 38,020.20
  4. Step 4: Simplify right side
    38,020.20x = 2,019,807,916.92
  5. Step 5: Solve for x
    x = 2,019,807,916.92/38,020.20
  6. Step 6: Final answer
    x = 53,124.60

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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.