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Finding the Fourth Proportional to 10,572.58, 15,832.95 and 6,665.14

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Solution

The fourth proportional to 10,572.58, 15,832.95 and 6,665.14 is: 9,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.58 : 15,832.95 = 6,665.14 : x
  2. Step 2: Convert to fraction form
    10,572.58/15,832.95 = 6,665.14/x
  3. Step 3: Cross multiply
    10,572.58x = 15,832.95 × 6,665.14
  4. Step 4: Simplify right side
    10,572.58x = 105,528,828.36
  5. Step 5: Solve for x
    x = 105,528,828.36/10,572.58
  6. Step 6: Final answer
    x = 9,981.37

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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.