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Finding the Fourth Proportional to 64,012.40, 96,018.60 and 59,638.40

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Solution

The fourth proportional to 64,012.40, 96,018.60 and 59,638.40 is: 89,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,012.40 : 96,018.60 = 59,638.40 : x
  2. Step 2: Convert to fraction form
    64,012.40/96,018.60 = 59,638.40/x
  3. Step 3: Cross multiply
    64,012.40x = 96,018.60 × 59,638.40
  4. Step 4: Simplify right side
    64,012.40x = 5,726,395,674.24
  5. Step 5: Solve for x
    x = 5,726,395,674.24/64,012.40
  6. Step 6: Final answer
    x = 89,457.60

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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.