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Finding the Fourth Proportional to 74,668.30, 112,002.45 and 47,020.30

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Solution

The fourth proportional to 74,668.30, 112,002.45 and 47,020.30 is: 70,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,668.30 : 112,002.45 = 47,020.30 : x
  2. Step 2: Convert to fraction form
    74,668.30/112,002.45 = 47,020.30/x
  3. Step 3: Cross multiply
    74,668.30x = 112,002.45 × 47,020.30
  4. Step 4: Simplify right side
    74,668.30x = 5,266,388,799.74
  5. Step 5: Solve for x
    x = 5,266,388,799.74/74,668.30
  6. Step 6: Final answer
    x = 70,530.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.