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Finding the Fourth Proportional to 38,666.74, 53,357.57 and 22,748.11

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Solution

The fourth proportional to 38,666.74, 53,357.57 and 22,748.11 is: 31,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.74 : 53,357.57 = 22,748.11 : x
  2. Step 2: Convert to fraction form
    38,666.74/53,357.57 = 22,748.11/x
  3. Step 3: Cross multiply
    38,666.74x = 53,357.57 × 22,748.11
  4. Step 4: Simplify right side
    38,666.74x = 1,213,783,491.16
  5. Step 5: Solve for x
    x = 1,213,783,491.16/38,666.74
  6. Step 6: Final answer
    x = 31,390.90

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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.