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Finding the Fourth Proportional to 64,312.40, 96,468.60 and 29,320.40

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Solution

The fourth proportional to 64,312.40, 96,468.60 and 29,320.40 is: 43,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,312.40 : 96,468.60 = 29,320.40 : x
  2. Step 2: Convert to fraction form
    64,312.40/96,468.60 = 29,320.40/x
  3. Step 3: Cross multiply
    64,312.40x = 96,468.60 × 29,320.40
  4. Step 4: Simplify right side
    64,312.40x = 2,828,497,939.44
  5. Step 5: Solve for x
    x = 2,828,497,939.44/64,312.40
  6. Step 6: Final answer
    x = 43,980.60

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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.