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Finding the Fourth Proportional to 10,356.12, 15,528.18 and 7,073.18

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Solution

The fourth proportional to 10,356.12, 15,528.18 and 7,073.18 is: 10,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.12 : 15,528.18 = 7,073.18 : x
  2. Step 2: Convert to fraction form
    10,356.12/15,528.18 = 7,073.18/x
  3. Step 3: Cross multiply
    10,356.12x = 15,528.18 × 7,073.18
  4. Step 4: Simplify right side
    10,356.12x = 109,833,612.21
  5. Step 5: Solve for x
    x = 109,833,612.21/10,356.12
  6. Step 6: Final answer
    x = 10,605.67

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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.