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Finding the Fourth Proportional to 52,605.83, 78,911.09 and 19,307.73

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Solution

The fourth proportional to 52,605.83, 78,911.09 and 19,307.73 is: 28,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,605.83 : 78,911.09 = 19,307.73 : x
  2. Step 2: Convert to fraction form
    52,605.83/78,911.09 = 19,307.73/x
  3. Step 3: Cross multiply
    52,605.83x = 78,911.09 × 19,307.73
  4. Step 4: Simplify right side
    52,605.83x = 1,523,594,400.11
  5. Step 5: Solve for x
    x = 1,523,594,400.11/52,605.83
  6. Step 6: Final answer
    x = 28,962.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.