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Finding the Fourth Proportional to 51,158.64, 70,582.68 and 28,798.32

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Solution

The fourth proportional to 51,158.64, 70,582.68 and 28,798.32 is: 39,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,158.64 : 70,582.68 = 28,798.32 : x
  2. Step 2: Convert to fraction form
    51,158.64/70,582.68 = 28,798.32/x
  3. Step 3: Cross multiply
    51,158.64x = 70,582.68 × 28,798.32
  4. Step 4: Simplify right side
    51,158.64x = 2,032,662,605.10
  5. Step 5: Solve for x
    x = 2,032,662,605.10/51,158.64
  6. Step 6: Final answer
    x = 39,732.54

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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.