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Finding the Fourth Proportional to 61,387.99, 92,075.74 and 19,268.39

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Solution

The fourth proportional to 61,387.99, 92,075.74 and 19,268.39 is: 28,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,387.99 : 92,075.74 = 19,268.39 : x
  2. Step 2: Convert to fraction form
    61,387.99/92,075.74 = 19,268.39/x
  3. Step 3: Cross multiply
    61,387.99x = 92,075.74 × 19,268.39
  4. Step 4: Simplify right side
    61,387.99x = 1,774,151,449.88
  5. Step 5: Solve for x
    x = 1,774,151,449.88/61,387.99
  6. Step 6: Final answer
    x = 28,900.63

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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.