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Finding the Fourth Proportional to 71,595.48, 107,384.88 and 19,009.05

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Solution

The fourth proportional to 71,595.48, 107,384.88 and 19,009.05 is: 28,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,595.48 : 107,384.88 = 19,009.05 : x
  2. Step 2: Convert to fraction form
    71,595.48/107,384.88 = 19,009.05/x
  3. Step 3: Cross multiply
    71,595.48x = 107,384.88 × 19,009.05
  4. Step 4: Simplify right side
    71,595.48x = 2,041,284,553.16
  5. Step 5: Solve for x
    x = 2,041,284,553.16/71,595.48
  6. Step 6: Final answer
    x = 28,511.36

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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.