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Finding the Fourth Proportional to 66,075.79, 91,184.66 and 35,861.13

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Solution

The fourth proportional to 66,075.79, 91,184.66 and 35,861.13 is: 49,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.79 : 91,184.66 = 35,861.13 : x
  2. Step 2: Convert to fraction form
    66,075.79/91,184.66 = 35,861.13/x
  3. Step 3: Cross multiply
    66,075.79x = 91,184.66 × 35,861.13
  4. Step 4: Simplify right side
    66,075.79x = 3,269,984,946.27
  5. Step 5: Solve for x
    x = 3,269,984,946.27/66,075.79
  6. Step 6: Final answer
    x = 49,488.40

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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.