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Finding the Fourth Proportional to 19,700.84, 27,187.60 and 10,749.16

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Solution

The fourth proportional to 19,700.84, 27,187.60 and 10,749.16 is: 14,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.84 : 27,187.60 = 10,749.16 : x
  2. Step 2: Convert to fraction form
    19,700.84/27,187.60 = 10,749.16/x
  3. Step 3: Cross multiply
    19,700.84x = 27,187.60 × 10,749.16
  4. Step 4: Simplify right side
    19,700.84x = 292,243,862.42
  5. Step 5: Solve for x
    x = 292,243,862.42/19,700.84
  6. Step 6: Final answer
    x = 14,834.08

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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.