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Finding the Fourth Proportional to 57,408.60, 86,088.60 and 17,955.12

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Solution

The fourth proportional to 57,408.60, 86,088.60 and 17,955.12 is: 26,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,408.60 : 86,088.60 = 17,955.12 : x
  2. Step 2: Convert to fraction form
    57,408.60/86,088.60 = 17,955.12/x
  3. Step 3: Cross multiply
    57,408.60x = 86,088.60 × 17,955.12
  4. Step 4: Simplify right side
    57,408.60x = 1,545,731,143.63
  5. Step 5: Solve for x
    x = 1,545,731,143.63/57,408.60
  6. Step 6: Final answer
    x = 26,925.08

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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.