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Finding the Fourth Proportional to 19,110.93, 28,655.25 and 7,410.48

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Solution

The fourth proportional to 19,110.93, 28,655.25 and 7,410.48 is: 11,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.93 : 28,655.25 = 7,410.48 : x
  2. Step 2: Convert to fraction form
    19,110.93/28,655.25 = 7,410.48/x
  3. Step 3: Cross multiply
    19,110.93x = 28,655.25 × 7,410.48
  4. Step 4: Simplify right side
    19,110.93x = 212,349,157.02
  5. Step 5: Solve for x
    x = 212,349,157.02/19,110.93
  6. Step 6: Final answer
    x = 11,111.40

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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.