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Finding the Fourth Proportional to 19,369.95, 29,070.49 and 10,012.71

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Solution

The fourth proportional to 19,369.95, 29,070.49 and 10,012.71 is: 15,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,369.95 : 29,070.49 = 10,012.71 : x
  2. Step 2: Convert to fraction form
    19,369.95/29,070.49 = 10,012.71/x
  3. Step 3: Cross multiply
    19,369.95x = 29,070.49 × 10,012.71
  4. Step 4: Simplify right side
    19,369.95x = 291,074,385.93
  5. Step 5: Solve for x
    x = 291,074,385.93/19,369.95
  6. Step 6: Final answer
    x = 15,027.11

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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.