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Finding the Fourth Proportional to 67,413.98, 93,036.98 and 39,117.85

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Solution

The fourth proportional to 67,413.98, 93,036.98 and 39,117.85 is: 53,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,413.98 : 93,036.98 = 39,117.85 : x
  2. Step 2: Convert to fraction form
    67,413.98/93,036.98 = 39,117.85/x
  3. Step 3: Cross multiply
    67,413.98x = 93,036.98 × 39,117.85
  4. Step 4: Simplify right side
    67,413.98x = 3,639,406,199.91
  5. Step 5: Solve for x
    x = 3,639,406,199.91/67,413.98
  6. Step 6: Final answer
    x = 53,985.92

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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.