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Finding the Fourth Proportional to 64,317.70, 88,709.62 and 56,346.08

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Solution

The fourth proportional to 64,317.70, 88,709.62 and 56,346.08 is: 77,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,317.70 : 88,709.62 = 56,346.08 : x
  2. Step 2: Convert to fraction form
    64,317.70/88,709.62 = 56,346.08/x
  3. Step 3: Cross multiply
    64,317.70x = 88,709.62 × 56,346.08
  4. Step 4: Simplify right side
    64,317.70x = 4,998,439,345.29
  5. Step 5: Solve for x
    x = 4,998,439,345.29/64,317.70
  6. Step 6: Final answer
    x = 77,714.83

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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.