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Finding the Fourth Proportional to 66,023.60, 99,254.10 and 56,400.80

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Solution

The fourth proportional to 66,023.60, 99,254.10 and 56,400.80 is: 84,788.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,023.60 : 99,254.10 = 56,400.80 : x
  2. Step 2: Convert to fraction form
    66,023.60/99,254.10 = 56,400.80/x
  3. Step 3: Cross multiply
    66,023.60x = 99,254.10 × 56,400.80
  4. Step 4: Simplify right side
    66,023.60x = 5,598,010,643.28
  5. Step 5: Solve for x
    x = 5,598,010,643.28/66,023.60
  6. Step 6: Final answer
    x = 84,788.02

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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.