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Finding the Fourth Proportional to 19,368.64, 29,035.44 and 7,053.76

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Solution

The fourth proportional to 19,368.64, 29,035.44 and 7,053.76 is: 10,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.64 : 29,035.44 = 7,053.76 : x
  2. Step 2: Convert to fraction form
    19,368.64/29,035.44 = 7,053.76/x
  3. Step 3: Cross multiply
    19,368.64x = 29,035.44 × 7,053.76
  4. Step 4: Simplify right side
    19,368.64x = 204,809,025.25
  5. Step 5: Solve for x
    x = 204,809,025.25/19,368.64
  6. Step 6: Final answer
    x = 10,574.26

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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.