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Finding the Fourth Proportional to 64,008.81, 95,921.70 and 47,008.47

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Solution

The fourth proportional to 64,008.81, 95,921.70 and 47,008.47 is: 70,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,008.81 : 95,921.70 = 47,008.47 : x
  2. Step 2: Convert to fraction form
    64,008.81/95,921.70 = 47,008.47/x
  3. Step 3: Cross multiply
    64,008.81x = 95,921.70 × 47,008.47
  4. Step 4: Simplify right side
    64,008.81x = 4,509,132,356.80
  5. Step 5: Solve for x
    x = 4,509,132,356.80/64,008.81
  6. Step 6: Final answer
    x = 70,445.50

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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.