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Finding the Fourth Proportional to 64,007.40, 96,011.10 and 56,490.60

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Solution

The fourth proportional to 64,007.40, 96,011.10 and 56,490.60 is: 84,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,007.40 : 96,011.10 = 56,490.60 : x
  2. Step 2: Convert to fraction form
    64,007.40/96,011.10 = 56,490.60/x
  3. Step 3: Cross multiply
    64,007.40x = 96,011.10 × 56,490.60
  4. Step 4: Simplify right side
    64,007.40x = 5,423,724,645.66
  5. Step 5: Solve for x
    x = 5,423,724,645.66/64,007.40
  6. Step 6: Final answer
    x = 84,735.90

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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.