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Finding the Fourth Proportional to 19,925.28, 29,887.92 and 6,074.28

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Solution

The fourth proportional to 19,925.28, 29,887.92 and 6,074.28 is: 9,111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,925.28 : 29,887.92 = 6,074.28 : x
  2. Step 2: Convert to fraction form
    19,925.28/29,887.92 = 6,074.28/x
  3. Step 3: Cross multiply
    19,925.28x = 29,887.92 × 6,074.28
  4. Step 4: Simplify right side
    19,925.28x = 181,547,594.70
  5. Step 5: Solve for x
    x = 181,547,594.70/19,925.28
  6. Step 6: Final answer
    x = 9,111.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.