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Finding the Fourth Proportional to 56,461.60, 81,409.68 and 56,461.60

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Solution

The fourth proportional to 56,461.60, 81,409.68 and 56,461.60 is: 81,409.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.60 : 81,409.68 = 56,461.60 : x
  2. Step 2: Convert to fraction form
    56,461.60/81,409.68 = 56,461.60/x
  3. Step 3: Cross multiply
    56,461.60x = 81,409.68 × 56,461.60
  4. Step 4: Simplify right side
    56,461.60x = 4,596,520,788.29
  5. Step 5: Solve for x
    x = 4,596,520,788.29/56,461.60
  6. Step 6: Final answer
    x = 81,409.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.