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Finding the Fourth Proportional to 52,688.77, 79,088.86 and 51,498.91

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Solution

The fourth proportional to 52,688.77, 79,088.86 and 51,498.91 is: 77,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,688.77 : 79,088.86 = 51,498.91 : x
  2. Step 2: Convert to fraction form
    52,688.77/79,088.86 = 51,498.91/x
  3. Step 3: Cross multiply
    52,688.77x = 79,088.86 × 51,498.91
  4. Step 4: Simplify right side
    52,688.77x = 4,072,990,083.14
  5. Step 5: Solve for x
    x = 4,072,990,083.14/52,688.77
  6. Step 6: Final answer
    x = 77,302.81

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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.