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Finding the Fourth Proportional to 14,177.63, 19,564.94 and 7,890.01

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Solution

The fourth proportional to 14,177.63, 19,564.94 and 7,890.01 is: 10,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.63 : 19,564.94 = 7,890.01 : x
  2. Step 2: Convert to fraction form
    14,177.63/19,564.94 = 7,890.01/x
  3. Step 3: Cross multiply
    14,177.63x = 19,564.94 × 7,890.01
  4. Step 4: Simplify right side
    14,177.63x = 154,367,543.06
  5. Step 5: Solve for x
    x = 154,367,543.06/14,177.63
  6. Step 6: Final answer
    x = 10,888.10

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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.