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Finding the Fourth Proportional to 66,123.95, 91,256.68 and 37,448.62

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Solution

The fourth proportional to 66,123.95, 91,256.68 and 37,448.62 is: 51,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.95 : 91,256.68 = 37,448.62 : x
  2. Step 2: Convert to fraction form
    66,123.95/91,256.68 = 37,448.62/x
  3. Step 3: Cross multiply
    66,123.95x = 91,256.68 × 37,448.62
  4. Step 4: Simplify right side
    66,123.95x = 3,417,436,211.47
  5. Step 5: Solve for x
    x = 3,417,436,211.47/66,123.95
  6. Step 6: Final answer
    x = 51,682.28

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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.