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Finding the Fourth Proportional to 35,605.70, 53,413.35 and 12,239.30

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Solution

The fourth proportional to 35,605.70, 53,413.35 and 12,239.30 is: 18,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,605.70 : 53,413.35 = 12,239.30 : x
  2. Step 2: Convert to fraction form
    35,605.70/53,413.35 = 12,239.30/x
  3. Step 3: Cross multiply
    35,605.70x = 53,413.35 × 12,239.30
  4. Step 4: Simplify right side
    35,605.70x = 653,742,014.66
  5. Step 5: Solve for x
    x = 653,742,014.66/35,605.70
  6. Step 6: Final answer
    x = 18,360.60

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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.