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Finding the Fourth Proportional to 51,273.40, 71,607.80 and 51,273.40

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Solution

The fourth proportional to 51,273.40, 71,607.80 and 51,273.40 is: 71,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,273.40 : 71,607.80 = 51,273.40 : x
  2. Step 2: Convert to fraction form
    51,273.40/71,607.80 = 51,273.40/x
  3. Step 3: Cross multiply
    51,273.40x = 71,607.80 × 51,273.40
  4. Step 4: Simplify right side
    51,273.40x = 3,671,575,372.52
  5. Step 5: Solve for x
    x = 3,671,575,372.52/51,273.40
  6. Step 6: Final answer
    x = 71,607.80

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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.