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Finding the Fourth Proportional to 14,028.93, 19,359.95 and 7,655.58

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Solution

The fourth proportional to 14,028.93, 19,359.95 and 7,655.58 is: 10,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.93 : 19,359.95 = 7,655.58 : x
  2. Step 2: Convert to fraction form
    14,028.93/19,359.95 = 7,655.58/x
  3. Step 3: Cross multiply
    14,028.93x = 19,359.95 × 7,655.58
  4. Step 4: Simplify right side
    14,028.93x = 148,211,607.74
  5. Step 5: Solve for x
    x = 148,211,607.74/14,028.93
  6. Step 6: Final answer
    x = 10,564.71

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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.