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Finding the Fourth Proportional to 93,394.47, 128,895.12 and 52,005.63

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Solution

The fourth proportional to 93,394.47, 128,895.12 and 52,005.63 is: 71,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,394.47 : 128,895.12 = 52,005.63 : x
  2. Step 2: Convert to fraction form
    93,394.47/128,895.12 = 52,005.63/x
  3. Step 3: Cross multiply
    93,394.47x = 128,895.12 × 52,005.63
  4. Step 4: Simplify right side
    93,394.47x = 6,703,271,919.53
  5. Step 5: Solve for x
    x = 6,703,271,919.53/93,394.47
  6. Step 6: Final answer
    x = 71,773.76

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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.