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Finding the Fourth Proportional to 70,691.70, 106,038.92 and 56,586.26

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Solution

The fourth proportional to 70,691.70, 106,038.92 and 56,586.26 is: 84,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,691.70 : 106,038.92 = 56,586.26 : x
  2. Step 2: Convert to fraction form
    70,691.70/106,038.92 = 56,586.26/x
  3. Step 3: Cross multiply
    70,691.70x = 106,038.92 × 56,586.26
  4. Step 4: Simplify right side
    70,691.70x = 6,000,346,303.80
  5. Step 5: Solve for x
    x = 6,000,346,303.80/70,691.70
  6. Step 6: Final answer
    x = 84,880.49

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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.