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Finding the Fourth Proportional to 29,626.64, 40,880.80 and 19,030.64

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Solution

The fourth proportional to 29,626.64, 40,880.80 and 19,030.64 is: 26,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,626.64 : 40,880.80 = 19,030.64 : x
  2. Step 2: Convert to fraction form
    29,626.64/40,880.80 = 19,030.64/x
  3. Step 3: Cross multiply
    29,626.64x = 40,880.80 × 19,030.64
  4. Step 4: Simplify right side
    29,626.64x = 777,987,787.71
  5. Step 5: Solve for x
    x = 777,987,787.71/29,626.64
  6. Step 6: Final answer
    x = 26,259.74

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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.