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Finding the Fourth Proportional to 30,015.87, 41,419.84 and 16,587

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Solution

The fourth proportional to 30,015.87, 41,419.84 and 16,587 is: 22,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,015.87 : 41,419.84 = 16,587 : x
  2. Step 2: Convert to fraction form
    30,015.87/41,419.84 = 16,587/x
  3. Step 3: Cross multiply
    30,015.87x = 41,419.84 × 16,587
  4. Step 4: Simplify right side
    30,015.87x = 687,030,886.08
  5. Step 5: Solve for x
    x = 687,030,886.08/30,015.87
  6. Step 6: Final answer
    x = 22,888.92

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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.