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Finding the Fourth Proportional to 56,957.76, 85,436.64 and 36,312.48

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Solution

The fourth proportional to 56,957.76, 85,436.64 and 36,312.48 is: 54,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,957.76 : 85,436.64 = 36,312.48 : x
  2. Step 2: Convert to fraction form
    56,957.76/85,436.64 = 36,312.48/x
  3. Step 3: Cross multiply
    56,957.76x = 85,436.64 × 36,312.48
  4. Step 4: Simplify right side
    56,957.76x = 3,102,416,281.27
  5. Step 5: Solve for x
    x = 3,102,416,281.27/56,957.76
  6. Step 6: Final answer
    x = 54,468.72

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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.