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Finding the Fourth Proportional to 7,009.09, 9,672.17 and 4,356.45

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Solution

The fourth proportional to 7,009.09, 9,672.17 and 4,356.45 is: 6,011.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.09 : 9,672.17 = 4,356.45 : x
  2. Step 2: Convert to fraction form
    7,009.09/9,672.17 = 4,356.45/x
  3. Step 3: Cross multiply
    7,009.09x = 9,672.17 × 4,356.45
  4. Step 4: Simplify right side
    7,009.09x = 42,136,303.21
  5. Step 5: Solve for x
    x = 42,136,303.21/7,009.09
  6. Step 6: Final answer
    x = 6,011.67

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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.