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Finding the Fourth Proportional to 10,572.04, 15,828.90 and 7,967.08

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Solution

The fourth proportional to 10,572.04, 15,828.90 and 7,967.08 is: 11,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.04 : 15,828.90 = 7,967.08 : x
  2. Step 2: Convert to fraction form
    10,572.04/15,828.90 = 7,967.08/x
  3. Step 3: Cross multiply
    10,572.04x = 15,828.90 × 7,967.08
  4. Step 4: Simplify right side
    10,572.04x = 126,110,112.61
  5. Step 5: Solve for x
    x = 126,110,112.61/10,572.04
  6. Step 6: Final answer
    x = 11,928.65

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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.