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Finding the Fourth Proportional to 66,373.85, 91,595.56 and 36,159.11

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Solution

The fourth proportional to 66,373.85, 91,595.56 and 36,159.11 is: 49,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,373.85 : 91,595.56 = 36,159.11 : x
  2. Step 2: Convert to fraction form
    66,373.85/91,595.56 = 36,159.11/x
  3. Step 3: Cross multiply
    66,373.85x = 91,595.56 × 36,159.11
  4. Step 4: Simplify right side
    66,373.85x = 3,312,013,381.18
  5. Step 5: Solve for x
    x = 3,312,013,381.18/66,373.85
  6. Step 6: Final answer
    x = 49,899.37

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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.