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Finding the Fourth Proportional to 19,907.66, 27,462.29 and 13,926.21

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Solution

The fourth proportional to 19,907.66, 27,462.29 and 13,926.21 is: 19,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.66 : 27,462.29 = 13,926.21 : x
  2. Step 2: Convert to fraction form
    19,907.66/27,462.29 = 13,926.21/x
  3. Step 3: Cross multiply
    19,907.66x = 27,462.29 × 13,926.21
  4. Step 4: Simplify right side
    19,907.66x = 382,445,547.99
  5. Step 5: Solve for x
    x = 382,445,547.99/19,907.66
  6. Step 6: Final answer
    x = 19,210.98

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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.