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Finding the Fourth Proportional to 19,283.77, 28,928.74 and 5,953.64

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Solution

The fourth proportional to 19,283.77, 28,928.74 and 5,953.64 is: 8,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.77 : 28,928.74 = 5,953.64 : x
  2. Step 2: Convert to fraction form
    19,283.77/28,928.74 = 5,953.64/x
  3. Step 3: Cross multiply
    19,283.77x = 28,928.74 × 5,953.64
  4. Step 4: Simplify right side
    19,283.77x = 172,231,155.25
  5. Step 5: Solve for x
    x = 172,231,155.25/19,283.77
  6. Step 6: Final answer
    x = 8,931.40

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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.