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Finding the Fourth Proportional to 66,369.35, 91,590.41 and 36,154.91

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Solution

The fourth proportional to 66,369.35, 91,590.41 and 36,154.91 is: 49,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,369.35 : 91,590.41 = 36,154.91 : x
  2. Step 2: Convert to fraction form
    66,369.35/91,590.41 = 36,154.91/x
  3. Step 3: Cross multiply
    66,369.35x = 91,590.41 × 36,154.91
  4. Step 4: Simplify right side
    66,369.35x = 3,311,443,030.41
  5. Step 5: Solve for x
    x = 3,311,443,030.41/66,369.35
  6. Step 6: Final answer
    x = 49,894.16

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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.