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Finding the Fourth Proportional to 64,533.60, 89,060.80 and 35,856.64

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Solution

The fourth proportional to 64,533.60, 89,060.80 and 35,856.64 is: 49,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,533.60 : 89,060.80 = 35,856.64 : x
  2. Step 2: Convert to fraction form
    64,533.60/89,060.80 = 35,856.64/x
  3. Step 3: Cross multiply
    64,533.60x = 89,060.80 × 35,856.64
  4. Step 4: Simplify right side
    64,533.60x = 3,193,421,043.71
  5. Step 5: Solve for x
    x = 3,193,421,043.71/64,533.60
  6. Step 6: Final answer
    x = 49,484.63

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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.