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Finding the Fourth Proportional to 15,030.40, 22,540.08 and 5,166.88

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Solution

The fourth proportional to 15,030.40, 22,540.08 and 5,166.88 is: 7,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.40 : 22,540.08 = 5,166.88 : x
  2. Step 2: Convert to fraction form
    15,030.40/22,540.08 = 5,166.88/x
  3. Step 3: Cross multiply
    15,030.40x = 22,540.08 × 5,166.88
  4. Step 4: Simplify right side
    15,030.40x = 116,461,888.55
  5. Step 5: Solve for x
    x = 116,461,888.55/15,030.40
  6. Step 6: Final answer
    x = 7,748.42

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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.