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Finding the Fourth Proportional to 19,302.01, 28,943.76 and 9,429.73

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Solution

The fourth proportional to 19,302.01, 28,943.76 and 9,429.73 is: 14,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.01 : 28,943.76 = 9,429.73 : x
  2. Step 2: Convert to fraction form
    19,302.01/28,943.76 = 9,429.73/x
  3. Step 3: Cross multiply
    19,302.01x = 28,943.76 × 9,429.73
  4. Step 4: Simplify right side
    19,302.01x = 272,931,841.98
  5. Step 5: Solve for x
    x = 272,931,841.98/19,302.01
  6. Step 6: Final answer
    x = 14,140.07

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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.