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Finding the Fourth Proportional to 10,369.80, 15,554.70 and 2,973.60

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Solution

The fourth proportional to 10,369.80, 15,554.70 and 2,973.60 is: 4,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.80 : 15,554.70 = 2,973.60 : x
  2. Step 2: Convert to fraction form
    10,369.80/15,554.70 = 2,973.60/x
  3. Step 3: Cross multiply
    10,369.80x = 15,554.70 × 2,973.60
  4. Step 4: Simplify right side
    10,369.80x = 46,253,455.92
  5. Step 5: Solve for x
    x = 46,253,455.92/10,369.80
  6. Step 6: Final answer
    x = 4,460.40

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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.