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Finding the Fourth Proportional to 14,398.16, 21,603.48 and 7,009.04

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Solution

The fourth proportional to 14,398.16, 21,603.48 and 7,009.04 is: 10,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.16 : 21,603.48 = 7,009.04 : x
  2. Step 2: Convert to fraction form
    14,398.16/21,603.48 = 7,009.04/x
  3. Step 3: Cross multiply
    14,398.16x = 21,603.48 × 7,009.04
  4. Step 4: Simplify right side
    14,398.16x = 151,419,655.46
  5. Step 5: Solve for x
    x = 151,419,655.46/14,398.16
  6. Step 6: Final answer
    x = 10,516.60

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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.