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Finding the Fourth Proportional to 29,700.63, 44,555.04 and 9,980.72

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Solution

The fourth proportional to 29,700.63, 44,555.04 and 9,980.72 is: 14,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,700.63 : 44,555.04 = 9,980.72 : x
  2. Step 2: Convert to fraction form
    29,700.63/44,555.04 = 9,980.72/x
  3. Step 3: Cross multiply
    29,700.63x = 44,555.04 × 9,980.72
  4. Step 4: Simplify right side
    29,700.63x = 444,691,156.05
  5. Step 5: Solve for x
    x = 444,691,156.05/29,700.63
  6. Step 6: Final answer
    x = 14,972.45

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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.