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Finding the Fourth Proportional to 52,458.48, 72,412.92 and 38,422.80

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Solution

The fourth proportional to 52,458.48, 72,412.92 and 38,422.80 is: 53,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,458.48 : 72,412.92 = 38,422.80 : x
  2. Step 2: Convert to fraction form
    52,458.48/72,412.92 = 38,422.80/x
  3. Step 3: Cross multiply
    52,458.48x = 72,412.92 × 38,422.80
  4. Step 4: Simplify right side
    52,458.48x = 2,782,307,142.58
  5. Step 5: Solve for x
    x = 2,782,307,142.58/52,458.48
  6. Step 6: Final answer
    x = 53,038.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.