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Finding the Fourth Proportional to 70,689.74, 97,479.51 and 46,807.70

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Solution

The fourth proportional to 70,689.74, 97,479.51 and 46,807.70 is: 64,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,689.74 : 97,479.51 = 46,807.70 : x
  2. Step 2: Convert to fraction form
    70,689.74/97,479.51 = 46,807.70/x
  3. Step 3: Cross multiply
    70,689.74x = 97,479.51 × 46,807.70
  4. Step 4: Simplify right side
    70,689.74x = 4,562,791,172.83
  5. Step 5: Solve for x
    x = 4,562,791,172.83/70,689.74
  6. Step 6: Final answer
    x = 64,546.73

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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.