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Finding the Fourth Proportional to 56,482.60, 84,719.28 and 19,041.86

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Solution

The fourth proportional to 56,482.60, 84,719.28 and 19,041.86 is: 28,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,482.60 : 84,719.28 = 19,041.86 : x
  2. Step 2: Convert to fraction form
    56,482.60/84,719.28 = 19,041.86/x
  3. Step 3: Cross multiply
    56,482.60x = 84,719.28 × 19,041.86
  4. Step 4: Simplify right side
    56,482.60x = 1,613,212,669.06
  5. Step 5: Solve for x
    x = 1,613,212,669.06/56,482.60
  6. Step 6: Final answer
    x = 28,561.23

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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.