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Finding the Fourth Proportional to 66,572.59, 91,857.99 and 37,890.55

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Solution

The fourth proportional to 66,572.59, 91,857.99 and 37,890.55 is: 52,282.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,572.59 : 91,857.99 = 37,890.55 : x
  2. Step 2: Convert to fraction form
    66,572.59/91,857.99 = 37,890.55/x
  3. Step 3: Cross multiply
    66,572.59x = 91,857.99 × 37,890.55
  4. Step 4: Simplify right side
    66,572.59x = 3,480,549,762.99
  5. Step 5: Solve for x
    x = 3,480,549,762.99/66,572.59
  6. Step 6: Final answer
    x = 52,282.02

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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.