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Finding the Fourth Proportional to 14,176.15, 19,563.74 and 7,888.93

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Solution

The fourth proportional to 14,176.15, 19,563.74 and 7,888.93 is: 10,887.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,176.15 : 19,563.74 = 7,888.93 : x
  2. Step 2: Convert to fraction form
    14,176.15/19,563.74 = 7,888.93/x
  3. Step 3: Cross multiply
    14,176.15x = 19,563.74 × 7,888.93
  4. Step 4: Simplify right side
    14,176.15x = 154,336,935.95
  5. Step 5: Solve for x
    x = 154,336,935.95/14,176.15
  6. Step 6: Final answer
    x = 10,887.08

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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.