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Finding the Fourth Proportional to 19,157.77, 28,916.59 and 19,157.77

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Solution

The fourth proportional to 19,157.77, 28,916.59 and 19,157.77 is: 28,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.77 : 28,916.59 = 19,157.77 : x
  2. Step 2: Convert to fraction form
    19,157.77/28,916.59 = 19,157.77/x
  3. Step 3: Cross multiply
    19,157.77x = 28,916.59 × 19,157.77
  4. Step 4: Simplify right side
    19,157.77x = 553,977,241.92
  5. Step 5: Solve for x
    x = 553,977,241.92/19,157.77
  6. Step 6: Final answer
    x = 28,916.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.