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Finding the Fourth Proportional to 58,070.64, 80,136.92 and 31,574.64

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Solution

The fourth proportional to 58,070.64, 80,136.92 and 31,574.64 is: 43,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,070.64 : 80,136.92 = 31,574.64 : x
  2. Step 2: Convert to fraction form
    58,070.64/80,136.92 = 31,574.64/x
  3. Step 3: Cross multiply
    58,070.64x = 80,136.92 × 31,574.64
  4. Step 4: Simplify right side
    58,070.64x = 2,530,294,399.71
  5. Step 5: Solve for x
    x = 2,530,294,399.71/58,070.64
  6. Step 6: Final answer
    x = 43,572.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.