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Finding the Fourth Proportional to 66,299.34, 91,526.99 and 51,158.01

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Solution

The fourth proportional to 66,299.34, 91,526.99 and 51,158.01 is: 70,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,299.34 : 91,526.99 = 51,158.01 : x
  2. Step 2: Convert to fraction form
    66,299.34/91,526.99 = 51,158.01/x
  3. Step 3: Cross multiply
    66,299.34x = 91,526.99 × 51,158.01
  4. Step 4: Simplify right side
    66,299.34x = 4,682,338,413.90
  5. Step 5: Solve for x
    x = 4,682,338,413.90/66,299.34
  6. Step 6: Final answer
    x = 70,624.21

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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.