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Finding the Fourth Proportional to 66,265.95, 99,430.86 and 32,988.95

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Solution

The fourth proportional to 66,265.95, 99,430.86 and 32,988.95 is: 49,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,265.95 : 99,430.86 = 32,988.95 : x
  2. Step 2: Convert to fraction form
    66,265.95/99,430.86 = 32,988.95/x
  3. Step 3: Cross multiply
    66,265.95x = 99,430.86 × 32,988.95
  4. Step 4: Simplify right side
    66,265.95x = 3,280,119,669.00
  5. Step 5: Solve for x
    x = 3,280,119,669.00/66,265.95
  6. Step 6: Final answer
    x = 49,499.32

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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.