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Finding the Fourth Proportional to 66,332.64, 99,533.52 and 29,388

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Solution

The fourth proportional to 66,332.64, 99,533.52 and 29,388 is: 44,097.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,332.64 : 99,533.52 = 29,388 : x
  2. Step 2: Convert to fraction form
    66,332.64/99,533.52 = 29,388/x
  3. Step 3: Cross multiply
    66,332.64x = 99,533.52 × 29,388
  4. Step 4: Simplify right side
    66,332.64x = 2,925,091,085.76
  5. Step 5: Solve for x
    x = 2,925,091,085.76/66,332.64
  6. Step 6: Final answer
    x = 44,097.31

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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.