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Finding the Fourth Proportional to 19,075.58, 28,595.95 and 7,379.99

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Solution

The fourth proportional to 19,075.58, 28,595.95 and 7,379.99 is: 11,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,075.58 : 28,595.95 = 7,379.99 : x
  2. Step 2: Convert to fraction form
    19,075.58/28,595.95 = 7,379.99/x
  3. Step 3: Cross multiply
    19,075.58x = 28,595.95 × 7,379.99
  4. Step 4: Simplify right side
    19,075.58x = 211,037,663.61
  5. Step 5: Solve for x
    x = 211,037,663.61/19,075.58
  6. Step 6: Final answer
    x = 11,063.24

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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.