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Finding the Fourth Proportional to 58,719.20, 88,078.80 and 19,266.80

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Solution

The fourth proportional to 58,719.20, 88,078.80 and 19,266.80 is: 28,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.20 : 88,078.80 = 19,266.80 : x
  2. Step 2: Convert to fraction form
    58,719.20/88,078.80 = 19,266.80/x
  3. Step 3: Cross multiply
    58,719.20x = 88,078.80 × 19,266.80
  4. Step 4: Simplify right side
    58,719.20x = 1,696,996,623.84
  5. Step 5: Solve for x
    x = 1,696,996,623.84/58,719.20
  6. Step 6: Final answer
    x = 28,900.20

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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.