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Finding the Fourth Proportional to 64,482.76, 88,987.10 and 35,413.50

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Solution

The fourth proportional to 64,482.76, 88,987.10 and 35,413.50 is: 48,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,482.76 : 88,987.10 = 35,413.50 : x
  2. Step 2: Convert to fraction form
    64,482.76/88,987.10 = 35,413.50/x
  3. Step 3: Cross multiply
    64,482.76x = 88,987.10 × 35,413.50
  4. Step 4: Simplify right side
    64,482.76x = 3,151,344,488.78
  5. Step 5: Solve for x
    x = 3,151,344,488.78/64,482.76
  6. Step 6: Final answer
    x = 48,871.12

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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.