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Finding the Fourth Proportional to 19,907.58, 27,460.98 and 11,945.10

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Solution

The fourth proportional to 19,907.58, 27,460.98 and 11,945.10 is: 16,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.58 : 27,460.98 = 11,945.10 : x
  2. Step 2: Convert to fraction form
    19,907.58/27,460.98 = 11,945.10/x
  3. Step 3: Cross multiply
    19,907.58x = 27,460.98 × 11,945.10
  4. Step 4: Simplify right side
    19,907.58x = 328,024,152.20
  5. Step 5: Solve for x
    x = 328,024,152.20/19,907.58
  6. Step 6: Final answer
    x = 16,477.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.