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Finding the Fourth Proportional to 61,483.68, 84,669.12 and 53,413.68

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Solution

The fourth proportional to 61,483.68, 84,669.12 and 53,413.68 is: 73,555.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,483.68 : 84,669.12 = 53,413.68 : x
  2. Step 2: Convert to fraction form
    61,483.68/84,669.12 = 53,413.68/x
  3. Step 3: Cross multiply
    61,483.68x = 84,669.12 × 53,413.68
  4. Step 4: Simplify right side
    61,483.68x = 4,522,489,281.56
  5. Step 5: Solve for x
    x = 4,522,489,281.56/61,483.68
  6. Step 6: Final answer
    x = 73,555.93

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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.